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Molecular theory of gases: Kinetic energy
Related Topics
Wize University Chemistry Textbook > Gases and their Properties
Kinetic Energy, Temperature, and Speed of Gas Particles
6 Activities
Wize University Chemistry Textbook > Gases and their Properties
Kinetic Molecular Theory of Gases
1 Activity
Which one of the following gases has the greatest average molecular velocity at 300 K?
argon (Ar)
Nitrogen (N
2
)
Fluorine (F
2
)
Neon (Ne)
All have the same average molecular velocity
I don't know
Check Submission
More Kinetic Energy, Temperature, and Speed of Gas Particles Questions:
Molecular Theory of Gases: Kinetic Energy
Which of the following have the same kinetic energy?
He at 297 K He at 351 K H
2
at 297 K O
2
at 212 K SO
2
at 297 K
Collision theory: Root Mean Square Speed
Which of the following would have the lowest root mean square speed?
a) NO
2
at 273 K b) NO
2
at 453 K c) O
2
at 273 K
Consider the following two curves showing distributions of number of molecules vs. their kinetic energies for two different gas samples. Which of the following statements is
not consistent
with the two curves?
If the temperature of a sample of an unknown gas is increased from 0 °C to 100 °C, what will be the new root mean square speed of the particles if the original value was 330 m/s?
If a mixture of He and Xe are present in a vessel, and the root mean square speed of He is 412 m/s, what is the root mean square speed of Xe? What is the temperature of this vessel?
Gas Laws
Choose the correct statement(s):
Kinetic Molecular Theory
1. Compare the average kinetic energies of SiH
4
and CH
4
at a specific temperature?
2. Place these gases in order of increasing average molecular speed at 25
°
C: Kr, CH
4
, N
2
, CH
2
Cl
2
.
Kinetic Molecular Theory
Calculate the ratio of the rms speed of N
2
molecules 100
⁰
C to the rms speed of the same at 0
⁰
C.
Graham's Law: Kinetic Energy
1. If a mixture of He and Xe are present in a vessel, and the root mean square speed of He is 412 m/s, what is the root mean square speed of Xe? What is the temperature of this vessel?
Kinetic Energy and Temperature
3. If the temperature of a sample of an unknown gas is increased from 0 °C to 100 °C, what will be the new root mean square speed of the particles if the original value was 330 m/s?
How does the root mean square speed of a gas vary with molar mass?
Which of the following have the same kinetic energy?
I He at 297 K
II He at 351 K
Collision theory: Root Mean Square Speed
Which of the following would have the lowest rms?
a) NO
2
at 273 K b) NO
2
at 453 K c) O
2
at 273 K
Molecular Theory of Gases: Kinetic Energy
Which of the following have the same kinetic energy?
He at 297 K He at 351 K H
2
at 297 K O
2
at 212 K SO
2
at 297 K
Atom: Wave-Particle
An proton is confined in a 1-D box with a length of 40 pm.
What is the wavelength of the proton when n = 3?
Atom: Kinetic Energy
An proton is confined in a 1-D box with a length of 40 pm.
What is the kinetic energy of the proton when n = 3?
Atom: Kinetic Energy
A proton is confined in a 1-D box with a length of 40 pm.
Would moving to a larger box result in higher or lower energy?
Kinetic Molecular Theory
Suppose you have a sample of gas at a fixed temperature, and you increase the volume of the container. The pressure changes, since there are...
Gas Laws
Suppose you have a sample of gas at a fixed temperature, and you increase the volume of the container. The pressure changes, since there are...
Kinetic Molecular Theory
Which statement is false?
Consider the following two curves showing distributions of number of molecules vs. their kinetic energies for two different gas samples. Which of the following statements is
not consistent
with the two curves?
The following curves show the distribution of molecules vs. speed for two different samples of gas, System 1 and System 2. The area under both curves is equal. Which of these descriptions is
not consistent
with the differences between these two graphs?
More Kinetic Molecular Theory of Gases Questions:
Molecular Theory of Gases: Kinetic Energy
Which of the following have the same kinetic energy?
He at 297 K He at 351 K H
2
at 297 K O
2
at 212 K SO
2
at 297 K
KMT, Gas behavior
You have two balloons that each contain 1 mole of O
2
gas. Balloon 1 is at a temperature of 25
o
C and balloon 2 is at a temperature of 50
o
C. Select all the statements that are true.
Which statement is false?
Which of the following statements is least consistent with the kinetic-molecular theory of ideal gases?
Which of the following have the same kinetic energy?
I He at 297 K
II He at 351 K
Molecular Theory of Gases: Kinetic Energy
Which of the following have the same kinetic energy?
He at 297 K He at 351 K H
2
at 297 K O
2
at 212 K SO
2
at 297 K
Consider three samples of gas: CO
2
at 350 K, C
2
H
2
at 350 K, and O
2
at 400 K. Compare the average kinetic energies of the molecules in these three samples. Which statement is CORRECT?
Which of the following is NOT an assumption of an ideal gas
A sample of hydrogen gas (H
2
) is heated to 500 K. In a separate vessel, chlorine gas (Cl
2
) is heated to 500 K. Assuming both gases behave as ideal gasses, select the statement below that is TRUE.
Practice: Kinetic Molecular Theory
According to Kinetic Molecular Theory, the average kinetic energy (Translational Energy) is proportional to:
Kinetic Molecular Theory
Suppose you have a sample of gas at a fixed temperature, and you increase the volume of the container. The pressure changes, since there are...
Ideal Gas Law
Which of the following changes will NOT affect the total pressure of gas in a container, assuming all other factors remain constant?
Kinetic Molecular Theory
Which statement is false?