Answers
Related Questions
Given that hotter blackbodies produce more energy than cooler blackbodies, why do cooler red giants have much higher luminosity than much hotter red dwarfs?
Answers
Red giants are much larger than red dwarfs, which means that they have a much larger surface area and thus emit more energy. Although red giants have cooler surface temperatures than red dwarfs, their larger surface area more than makes up for the lower temperature in terms of total energy output.
The reason why red giants are much larger than red dwarfs has to do with the evolution of the star. Red giants are more evolved stars that have exhausted the hydrogen fuel in their cores, causing the core to contract and heat up, while the outer layers of the star expand and cool down. This expansion increases the star's size and surface area, leading to a higher luminosity.
Red dwarfs, on the other hand, are much smaller and cooler than red giants because they are low-mass stars that burn their fuel at a slower rate. As a result, they have longer lifetimes and remain on the main sequence longer, never undergoing the same expansion that red giants do.
Which of the following is the physical form of the law of conservation?
a
All the Above
b
Mechanical Energy
c
Light/Thermal Energy
d
Chemical Energy
Answers
Which of the following societies would have the lowest environmental impact?
A populous, highly industrialized society with high levels of consumption.
A less populated, highly industrialized society with moderate consumption levels.
A small population that farms using hand tools, has no modern technology, and grows their own food.
A large population with moderate industrialization and consumption levels.
Answers
The society with the least negative effects on the environment is probably the one with a small population, traditional farming methods, no access to contemporary technology, and self-sufficient food production.
This is due to the fact that their way of living is less dependent on modern infrastructure and technology, both of which have a negative impact on the environment. Additionally, their agricultural methods are probably more environmentally friendly and sustainable.
The environmental effects of the other societies on the list would all be greater. Because of the use of fossil fuels and the production of products that require a lot of resources, a big, industrialized society with high levels of consumption would have a significant carbon footprint.
It would still take a lot of resources to maintain its infrastructure and create products in a less populous, highly industrialized society with moderate consumption levels, which would have a negative effect on the environment.
Given that the size of the population alone would necessitate significant resource consumption and infrastructure development, a big population with moderate industrialization and consumption levels would also have a big effect on the environment.
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Consider the energy diagram below.
A graph with Reaction Progression on the x axis and Energy on the y axis. A line starts low on the y axis; this section runs horizontally and is labeled A. It rises sharply to a high round peak labeled C. A dotted line continues the initial line to a higher peak Over C, labelled B, and then falls back to the original line, which continues horizontally; this section is labeled D.
Which statement best describes the diagram?
The catalyzed reaction passes through C.
The energy of the catalyst is shown by A.
The reaction pathway through B is faster.
The energy of the reactants with catalyst is at D.
Answers
The statement best describes the diagram is the catalyzed reaction passes through C. Therefore, option A is correct.
What is an energy diagram ?An energy profile is a theoretical representation of a chemical reaction or process as a single energetic pathway as the reactants are transformed into products in theoretical chemistry.
The amount of relative potential energy in each step of a reaction is depicted by an energy diagram. Reactants, transition states, and products are typically depicted on energy diagrams. It may also include intermediates and activation energy, depending on the reaction.
There are two lines on the energy level diagram. The blue line denotes ground state energy, while the red line denotes excited state energy. The horizontal axis represents orbital energy, and the vertical axis represents total system energy.
Thus, option A is correct.
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how to synthesize tripropylamine from propylene
Answers
The reactions that result in the emission of light involve the ruthenium label and tripropylamine (TPA), two electrochemically active molecules.
Thus, The electrode surface inside the measurement cell is where the reactions take place.
The ruthenium label is oxidized at the electrode surface as an electrical potential is applied, and TPA is oxidized into a radical cation that spontaneously loses a proton.
When the resultant TPA radical interacts with oxidized ruthenium, the ruthenium label enters an excited state and emits a photon (620 nm) before decaying. The ruthenium label is renewed and ready to carry out numerous light-generating cycles as it goes back to its ground state.
Thus, The reactions that result in the emission of light involve the ruthenium label and tripropylamine (TPA), two electrochemically active molecules.
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The image below shows a model of the atom. Which subatomic particle does the arrow in
the image below identify?
?
A. electron
B. neutron
C. orbital
D. proton
Answers
The correct answer is A. Electron
Explanation:
The model of this atom depicts the nucleus of this in the center of the model, this section of the atom contains sub-particles known as protons and neutrons. Moreover, in the atom, the nucleus is surrounded by three sub-particles that orbit or move around the nucleus. These sub-particles are the electrons; these differ from other sub-particles because they have a negative charge and they are not part of the nucleus. Also, these move around the nucleus is orbits, although they move similarly to waves. According to this, the correct answer is A.
Write the equation for the equilibrium constant (K) of the reaction studied in this exercise.
2C04 2- (ag) + 2Ht (ag) = CI20, 2- (ag) + H20(1)
Answers
The equation for the equilibrium constant (K) of the reaction studied in this exercise can be written as follows: K = ([\(CI_20\), 2-] * [\(H_20\)(1)]) / ([\(C0_4^ 2\)-] * [Ht])
In this equation, the concentrations of the species involved in the reaction are represented by the square brackets [ ]. The subscripts indicate the stoichiometric coefficients of each species in the balanced chemical equation.
The reaction being studied involves the following species:
\(C0_4^ 2\)- (ag) + 2Ht (ag) = \(CI_20\), 2- (ag) + \(H_20\)(1)
In the equilibrium constant expression, the concentration of \(CI_20\), 2- is multiplied by the concentration of \(H_20\)(1) and divided by the product of the concentrations of \(C0_4^ 2\)- and Ht. The stoichiometric coefficients in the balanced equation are used as exponents for the concentrations of the respective species.
It is important to note that the concentrations used in the equilibrium constant expression should be in molar units (mol/L) or expressed as partial pressures for gases.
Additionally, the equilibrium constant is specific to a given temperature, and its value provides information about the relative amounts of reactants and products at equilibrium.
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If today is October 7th and we observe a waxing gibbous, on what date will we observe the next waning crescent?
Answers
Answer:
14 days.
Explanation:
If today were October 7 and we observed a waxing gibbous moon, that is, a moon with an illumination greater than a first quarter but less than a full moon, we would have to wait 14 days to see a waning crescent moon, which would be a moon with a visibility less than the last quarter but greater than a new moon.
Calculate the relative molecular mass of hydrated Copper (II) tetraoxosulphate (VI) CuSO4.5H₂O (Cu = 64 S = 32 H = 1 0 = 16).
Answers
The relative molecular mass of hydrated Copper (II) tetraoxosulphate (VI) CuSO4.5H₂O is 249.
What is molecular mass?Molecular mass is a measure of the total mass of one mole of a substance, which is defined as the mass of the substance divided by the number of molecules it contains. It is typically expressed in g/mol and is also known as molar mass. Molecular mass is determined by the types and number of atoms that compose a molecule, and is an important factor in understanding the properties of a substance.
This is calculated by adding the atomic masses of all the atoms present in the compound.
The atomic mass of copper is 64, sulphur is 32, oxygen is 16, and hydrogen is 1.
So, the relative molecular mass of hydrated Copper (II) tetraoxosulphate (VI) CuSO4.5H₂O is 64 + 32 + (16*4.5) + (1*5) = 249.
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Why are diamonds unevenly distributed on Earth?
Soil forms only in places where rock particles are deposited.
Soil forms only in places where larger rocks are broken into smaller rocks.
Soil forms only within the Earth under heavy pressure.
Soil forms in the air and is then deposited mainly in places that get a lot of rain.
Answers
Answer:
Why aren't diamonds found evenly distributed on Earth? Diamonds are only formed under specific conditions that involve geological processes, such as volcanic activities and plate movements. Since these conditions and processes only take place in certain areas, you can only find diamonds in these special places.
Explanation:
how many molecules of potassium chloride will react if 21.89 grams KCl are added to the solution
Answers
There are approximately 1.765 x 10²³ molecules of KCl in 21.89 grams of KCl.
What is meant by potassium chloride ?Potassium chloride (KCl) is a compound made up of potassium and chloride ions. It is a colorless, odorless salt that is commonly used in a variety of applications.
Molar mass of KCl is 74.55 g/mol; number of moles = Mass/ Molar mass
So, the number of moles = 21.89 g ÷ 74.55 g/mol = 0.2936 mol
and the number of molecules = Number of moles * Avogadro's number
Number of molecules = 0.2936 mol x 6.02 x 10²³ molecules/mol
Number of molecules = 1.765 x 10²³ molecules
Therefore, there are approximately 1.765 x 10²³ molecules of KCl in 21.89 grams of KCl.
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Is pre ap chemistry hard in high school?
Answers
If you don't practice enough it's obviously going to be hard but if you practice enough it's going to be a piece of cake so don't think if it's going to be hard or not just think it's going to be worth the try at the very end
please help with this question :)
Answers
For a 1-gram piece of magnesium, the amount of MgO produced by Mg is less than the amount produced by O2. Therefore, Mg is the limiting reactant and O2 is in excess.
For a 1000-gram piece of magnesium, the amount of MgO produced by Mg is still less than the amount produced by O2, even though there is a lot more Mg present. Therefore, Mg is still the limiting reactant and O2 is in excess.
To determine which reactant is limiting and which is in excess, we need to calculate the amount of product that each reactant can produce and compare them.
For a 1-gram piece of magnesium:
Moles of Mg = mass/Molar mass = 1 g/24.31 g/mol = 0.041 moles
Moles of O2 = volume x pressure/RT = (22.4 L at STP x 1 atm)/(0.0821 L·atm/mol·K x 273 K) = 1.0 moles
According to the balanced equation, 2 moles of Mg reacts with 1 mole of O2 to produce 2 moles of MgO
Therefore, the amount of MgO produced by 0.041 moles of Mg would be (2/2) x 0.041 moles = 0.041 moles
The amount of MgO produced by 1 mole of O2 would be (2/1) x 0.041 moles = 0.082 moles
We can see that the amount of MgO produced by Mg is less than the amount produced by O2. Therefore, Mg is the limiting reactant and O2 is in excess.
For a 1000-gram piece of magnesium:
Moles of Mg = mass/Molar mass = 1000 g/24.31 g/mol = 41.1 moles
Moles of O2 = volume x pressure/RT = (22.4 L at STP x 1 atm)/(0.0821 L·atm/mol·K x 273 K) = 1.0 moles
According to the balanced equation, 2 moles of Mg reacts with 1 mole of O2 to produce 2 moles of MgO
Therefore, the amount of MgO produced by 41.1 moles of Mg would be (2/2) x 41.1 moles = 41.1 moles
The amount of MgO produced by 1 mole of O2 would be (2/1) x 41.1 moles = 82.2 moles
We can see that the amount of MgO produced by Mg is still less than the amount produced by O2, even though there is a lot more Mg present. Therefore, Mg is still the limiting reactant and O2 is in excess.
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40 . For the first ionization energy for an N2 molecule, what molecular orbital is the electron removed from
Answers
Answer:
For the first ionization energy for an N2 molecule, the molecular orbital that the electron is removed from is the p orbital.
It should be noted that valence electrons simply refer to the electrons in an atom that holds the last orbital that is required for chemical bonding with other elements.
The existence of valence electrons can define the chemical properties of that atom. For the first energy in ionization of an N2 molecule, the molecular orbital where the electron could be extracted is the p orbital since it has the highest energy level.
2.
Which mixture could be a useful buffer in a solution?
acetic acid (CH3CO2H) and hydrochloric acid (HCl)
sodium hydroxide (NaOH) and elemental sodium (Na)
ammonia (NH3) and ammonium chloride (NH4Cl)
acetic acid (CH3CO2H) and ammonia (NH3)
Pls answer quickly
Answers
Ammonia (\(NH_3\)) and ammonium chloride (\(NH_4Cl\)) mixture could be a useful buffer in a solution. Option C
A buffer is a solution that can resist changes in pH when small amounts of acid or base are added. It consists of a weak acid and its conjugate base or a weak base and its conjugate acid. The buffer system works by the principle of Le Chatelier's principle, where the equilibrium is shifted to counteract the changes caused by the addition of an acid or a base.
In option A, acetic acid (\(CH_3CO_2H\)) is a weak acid, but hydrochloric acid (HCl) is a strong acid. This combination does not form a buffer because HCl is completely dissociated in water and cannot provide a significant concentration of its conjugate base.
Option B consists of sodium hydroxide (NaOH), which is a strong base, and elemental sodium (Na), which is a metal. This combination does not form a buffer as there is no weak acid-base pair involved.
Option D contains acetic acid (\(CH_3CO_2H\)), a weak acid, and ammonia (\(NH_3\)), a weak base. Although they are weak acid and base, they do not form a buffer system together as they are both weak acids or bases and lack the required conjugate acid-base pair.
Option C, ammonia (\(NH_3\)), is a weak base, and ammonium chloride (\(NH_4Cl\)) is its conjugate acid. This combination can form a buffer system. When ammonia reacts with water, it forms ammonium ions (NH4+) and hydroxide ions (OH-).
The ammonium ions act as the weak acid, while the ammonia acts as the weak base. The addition of a small amount of acid will be counteracted by the ammonium ions, and the addition of a small amount of base will be counteracted by the ammonia, thus maintaining the pH of the solution relatively stable.
Therefore, option C, consisting of ammonia (\(NH_3\)) and ammonium chloride (\(NH_4Cl\)), is the suitable mixture that could be a useful buffer in a solution.
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What is the name of the planet next to the label A?
Solar System
EARTH
SUN
A. Uranus
O ОО
B. Neptune
C. Jupiter
d
D. Saturn
Please help
Answers
Answer:
B. Neptune. Neptune is next to Uranus
Using the table of average bond energies, determine the total bond energy for the products in the combustion of ethene: C2H4 + 3 O2 --> 2 CO2 + 2 H2O
Answers
Answer:
\(B\text{ : }5064\text{ KJ/mol}\)Explanation:
Here, we want to get the total bond energy for the products
On the products side, we have 4 C=O bonds formed and 4 O-H bonds formed
We have the values from the given table above
Thus, we have the energy as the sum of the energy of the bonds
Mathematically, we have that as:
\((4\times\text{ 799 \rparen + \lparen4 }\times467)\text{ = 5,064 KJ/mol}\)We would be having the answer as negative since the process of bond formation is exothermic (heat is given off and enthalpy change value is negative)
some1 please help me with this problem
for reference: it’s speaking about 3H2 + N2 -> 2NH3 (ammonia)
Answers
Theoretically, if 20 grams of hydrogen reacts then 112.5 grams of ammonia is produced.
The balanced chemical equation can be given as:
N₂+3H₂→ 2NH₃
From stoichiometry, 2 mol of NH₃is produced from 3 mol of H₂
5 mol of NH₃ will be produced from = 3/2×5 = 7.5 mol of H₂
∴mass of H₂=7.5×2= 15gm of H₂.
Excess reagents are those reactants in a chemical reaction that are not exhausted at the end of the reaction. A completely exhausted or reacted reagent is called a limiting reagent because its amount limits the number of products formed. In this reaction, the excess reagent is Nitrogen as 35 grams of nitrogen and 15 grams of hydrogen react to produce 34 grams of ammonia.
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How many um are in
22.5 mm?
Answers
Answer:
A
Explanation: That's what I got but I don't know if its correct sorry if it was wrong.
Answer:
the answer is C
Explanation:
Which is not true of the weak nuclear force?
Answers
The incorrect option for the weak nuclear force is it is a repellent force. The correct option is A.
What are weak nuclear forces?The weak interaction, also known as the weak force or weak nuclear force, is a fundamental force of nature that governs the decay of unstable subatomic particles like mesons and initiates the nuclear fusion reaction that powers the Sun.
Thus, the correct option is A. it is a repellent force.
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Calculate the pH of a solution in which one normal adult dose of aspirin (640 mg ) is dissolved in 10 ounces of water. Express your answer to one decimal place.
Answers
The pH of the solution in which one normal adult dose aspirin is dissolved is : 2.7
Given data :
mass of aspirin = 640 mg = 0.640 g
volume of water = 10 ounces = 0.295735 L
molar mass of aspirin = 180.16 g/mol
moles of aspirin = mass / molar mass = 0.00355 mol
Determine the pH of the solutionFirst step : calculate the concentration of aspirin
= moles of Aspirin / volume of water
= 0.00355 / 0.295735
= 0.012 M
Given that pKa of Aspirin = 3.5
pKa = -logKa
therefore ; Ka = \(10^{-3.5}\) = \(3.162 * 10^{-4}\)
From the Ice table
\(3.162 * 10^{-4}\) = \(\frac{x + H^+}{[aspirin]}\) = \(\frac{x^{2} }{0.012-x}\)
given that the value of Ka is small we will ignore -x
x² = \(3.162 * 10^{-4} * 0.012\)
x = \(1.948 * 10^{-3}\)
Therefore
[ H⁺ ] = \(1.948 * 10^{-3}\)
given that
pH = - Log [ H⁺ ]
= - ( -3 + log 1.948 )
= 2.71 ≈ 2.7
Hence we can conclude that The pH of the solution in which one normal adult dose aspirin is dissolved is : 2.7
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The density of 1 cm3
of water is 1g/cm3
. What is the density of 200 cm3
of pure water?
A student has 25 cubic centimeters of three liquids: blue water(density 1g/cm3
), olive oil (density 0.85 g/cm3
) and corn syrup (density 1.4 g/cm3
). She carefully pours them into a single graduated cylinder. Please predict what will happen.
Responses
Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
Olive Oil on top, water in middle, and corn syrup on bottom because syrup is most dense.
Olive Oil on top, water in middle, and corn syrup on bottom because syrup is most dense.
It is not possible to predict.
It is not possible to predict.
Skip to navigation
Responses
Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
Corn
A student has 25 cubic centimeters of three liquids: blue water(density 1g/cm3
), olive oil (density 0.85 g/cm3
) and corn syrup (density 1.4 g/cm3
). She carefully pours them into a single graduated cylinder. Please predict what will happen.
Responses
Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
Olive Oil on top, water in middle, and corn syrup on bottom because syrup is most dense.
Olive Oil on top, water in middle, and corn syrup on bottom because syrup is most dense.
It is not possible to predict.
It is not possible to predict.
Skip to navigation
A student has 25 cubic centimeters of three liquids: blue water(density 1g/cm3
), olive oil (density 0.85 g/cm3
) and corn syrup (density 1.4 g/cm3
). She carefully pours them into a single graduated cylinder. Please predict what will happen.
Responses
Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
Olive Oil on top, water in middle, and corn syrup on bottom because syrup is most dense.
Olive Oil on top, water in middle, and corn syrup on bottom because syrup is most dense.
It is not possible to predict.
It is not possible to predict.
Skip to navigation
A student has 25 cubic centimeters of three liquids: blue water(density 1g/cm3
, olive oil (density 0.85 g/cm3 and corn syrup (density 1.4 g/cm3
She carefully pours them into a single graduated cylinder. Please predict what will happen.
A Corn syrup on top, water in middle, and olive oil on bottom because oil is most dense.
B Olive Oil on top, water in middle, and corn syrup on bottom because syrup is most dense.
C It is not possible to predict.
Answers
The density of 200 cm^3 of pure water is 200 g / 200 cm^3 = 1 g/cm^3, and is the same as the density of 1 cm^3 of water.
b. A Corn syrup on top, water in middle, and olive oil on bottom because corn syrup has the highest density of 1.4 g/cm^3, followed by water with a density of 1 g/cm^3, and olive oil with a density of 0.85 g/cm^3.
So option A is correct.
What is density?Density is described as the substance's mass per unit of volume.
We were able to determine which substance will stay in its relative position using Archimedes' principle which states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces.
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What is the main impurity collected with oil
Answers
Answer:
water
Explanation:
i cba
The measure of the length of events and the duration of intervals between events
Answers
The measure of the length of events and the duration of intervals between events is time.
What is time?The duration of events or the gaps between them can be measured, compared, or even ordered using time. The lengthy period of time that the Earth's geologic history takes up is known as geologic time. Starting at the beginning of the Archean Eon formal geologic time runs until the present. Geology is defined as the "Science of the Earth."
Geology is the fundamental Earth science that examines how the earth created, its structure and composition, and the various forces acting on it. It is sometimes known as geoscience or earth science.
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2 NaOH (s) + CO2(g) → Na2CO3 (s) + H20 (I)
How many grams of water can be produced with 1.85 moles of NaOH
Answers
16.7 g H₂O
General Formulas and Concepts:Math
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightChemistry
Stoichiometry
Reading a Periodic TableUsing Dimensional AnalysisExplanation:Step 1: Define
[RxN - Balanced] 2NaOH (s) + CO₂ (g) → Na₂CO₃ (s) + H₂O (l)
[Given] 1.85 mol NaOH
Step 2: Identify Conversions
[RxN] 2 mol NaOH → 1 mol H₂O
Molar Mass of H - 1.01 g/mol
Molar Mass of O - 16.00 g/mol
Molar Mass of H₂O - 2(1.01) + 16.00 = 18.02 g/mol
Step 3: Stoichiometry
Set up: \(\displaystyle 1.85 \ mol \ NaOH(\frac{1 \ mol \ H_2O}{2 \ mol \ NaOH})(\frac{18.02 \ g \ H_2O}{1 \ mol \ H_2O})\)Multiply/Divide: \(\displaystyle 16.6685 \ g \ H_2O\)Step 4: Check
Follow sig fig rules and round. We are given 3 sig figs.
16.6685 g H₂O ≈ 16.7 g H₂O
What is the definition of specific heat?
A. The heat needed to raise the temperature of 1 g of a substance
1°C
B. The total amount of energy contained within 1 mole of a
substance
C. The heat required to break the molecular bonds within a
substance
D. The temperature change between the melting and boiling points of
a substance
Answers
Answer:
A. The heat needed to raise the temperature of 1 g of a substance 1°C.
Explanation:
how this has helped you
1.40 g H2 is allowed to react with 9.66 g N2, producing 2.24 g NH3
.
What is the theoretical yield in grams for this reaction under the given conditions?
Answers
The theoretical yield of NH₃ produced under the given conditions is 11.75 g.
The balanced equation for the reaction between hydrogen (H₂) and nitrogen (N₂) to form ammonia (NH₃) is;
N₂ + 3H₂ → 2NH₃
To determine the theoretical yield of NH₃ produced from the given amounts of H₂ and N₂, we need to calculate the limiting reactant and then use stoichiometry to find the maximum amount of NH₃ which can be produced.
The molar masses of H₂, N₂, as well as NH₃ are;
H₂; 2.02 g/mol
N₂; 28.02 g/mol
NH₃; 17.03 g/mol
The number of the moles of each reactant will be calculated as;
moles of H₂ = mass of H₂ / molar mass of H₂ = 1.40 g / 2.02 g/mol = 0.693 mol
moles of N₂ = mass of N₂ / molar mass of N₂ = 9.66 g / 28.02 g/mol = 0.345 mol
To determine the limiting reactant, we need to compare the mole ratios of H₂ and N₂ in the balanced equation with the actual mole ratios of the reactants. The balanced equation shows that 1 mole of N₂ will reacts with 3 moles of H₂ to produce a 2 moles of NH₃. The actual mole ratio of N₂ to H₂ in the reaction mixture is;
moles of N₂ / moles of H₂ = 0.345 mol / 0.693 mol
= 0.498
This ratio is less than the required ratio of 1/3, which means that N₂ is the limiting reactant. This means that all the N₂ will be consumed in the reaction and the amount of NH₃ produced will depend on the amount of N₂ present.
Using the mole ratio from the balanced equation, we can calculate the theoretical yield of NH₃ that can be produced from the 0.345 mol of N₂;
moles of NH₃ = (0.345 mol N₂) × (2 mol NH3 / 1 mol N₂)
= 0.690 mol NH₃
The mass of this amount of NH₃ can be calculated as;
mass of NH₃ = moles of NH₃ × molar mass of NH₃ = 0.690 mol × 17.03 g/mol = 11.75 g
Therefore, the theoretical yield is 11.75 g.
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What state
of matter
exists in
area B?
A. gas
B. liquid
C. solid
Pressure
(atm)
61
6543210
0
50 100 150 200
Temperature (°C)
Answers
Considering the phase diagram, the state of matter that exists in area B is gas.
The correct option is A.
What is a phase diagram?A phase diagram is a graphical representation that shows the conditions of temperature and pressure at which different phases or states of a substance exist.
The axes of a phase diagram typically represent temperature (usually on the horizontal axis) and pressure (usually on the vertical axis). The diagram is divided into regions that correspond to different phases, and the lines separating these regions represent phase boundaries.
The point where three phase boundaries meet is known as the triple point, which represents the temperature and pressure at which all three phases can coexist in equilibrium.
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2. The process where two light nuclei combine together releasing vast amounts of energy is called _____.
a. Fission
b .Fusion
c. Radioactive Decay
d. Isotopes
Answers
7.5 L of a gas at 2 ATM and a temperature of 75°C is changed and volume to 3.4 L and a pressure of .5 ATM what is the new temperature
Answers
Answer:
Explanation:
Combined Gas Law
T2= T1P2V2/ (P1V1) = 348.15 X .5 X 3.4/(2 X 7.5) =39.46 K or -233.69C