Kinetic Theory of Gases
Physics ⇒ Heat and Thermodynamics
Kinetic Theory of Gases starts at 10 and continues till grade 12.
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A gas is compressed to half its original volume at constant temperature. What happens to the mean free path of its molecules?
Describe the difference between the root mean square speed, average speed, and most probable speed of gas molecules.
Explain the physical meaning of the Boltzmann constant (k).
Explain why lighter gas molecules move faster than heavier ones at the same temperature.
Explain why real gases deviate from ideal behavior at high pressures and low temperatures.
If the temperature of a gas is increased, what happens to the average kinetic energy of its molecules?
State the ideal gas equation and define each term.
The pressure exerted by an ideal gas is given by P = (1/3)ρvrms2. What does ρ represent in this equation?
Which law states that the volume of a given mass of gas is directly proportional to its absolute temperature at constant pressure?
(1) Boyle's Law
(2) Charles's Law
(3) Avogadro's Law
(4) Dalton's Law
Which of the following factors does NOT affect the mean free path of a gas molecule?
(1) Temperature
(2) Pressure
(3) Size of molecules
(4) Color of the gas
Which of the following gases will have the highest average speed at the same temperature?
(1) Oxygen (O2)
(2) Nitrogen (N2)
(3) Hydrogen (H2)
(4) Carbon dioxide (CO2)
Which of the following is a consequence of the kinetic theory of gases?
(1) Gases have definite shape
(2) Gases exert pressure on the walls of the container
(3) Gases cannot be compressed
(4) Gases do not expand to fill the container
According to the kinetic theory, the temperature at which the root mean square speed of gas molecules becomes zero is called ________.
The average kinetic energy of a gas molecule is directly proportional to its ________.
The kinetic theory of gases explains the macroscopic properties of gases in terms of the ________ of their molecules.
The mean free path of a gas molecule is the average distance traveled between ________.
True or False: According to kinetic theory, the pressure exerted by a gas is due to collisions of molecules with the walls of the container.
True or False: The kinetic energy of all molecules in a gas is the same at a given temperature.
True or False: The mean free path of a gas molecule increases with increasing pressure.
True or False: The pressure of a gas is independent of the mass of its molecules at constant temperature and volume.
