Thermodynamics
According to the kinetic theory of gases, what macroscopic property is directly related to the average kinetic energy of gas molecules?
Pressure
Volume
Temperature
Density
Gas pressure is defined as:
The force exerted by gas molecules.
The average kinetic energy of gas molecules.
The total force exerted by gas molecules on a surface divided by the area of that surface.
The number of gas molecules per unit volume.
A gas exerts a force of 20 N on a wall with an area of 4 . What is the pressure exerted by the gas on the wall?
5 Pa
10 Pa
80 Pa
0.2 Pa
Consider a gas in a container. When a gas atom collides with the wall of the container, which principle is most relevant for determining the force exerted on the wall?
Conservation of energy
Conservation of momentum
Newton's law of universal gravitation
The principle of superposition
What happens to the average kinetic energy of gas molecules when the temperature of the gas is decreased?
It increases.
It remains the same.
It decreases.
It becomes zero.
If the temperature of a gas is increased from 300 K to 600 K, how does the average speed of the gas molecules change?
It remains the same.
It doubles.
It is halved.
It increases by a factor of
A container holds a gas at a certain temperature. If you were to use the Maxwell-Boltzmann distribution to analyze the gas, what information would this distribution provide?
The exact speed of each molecule.
The average speed of the molecules only.
The distribution of molecular speeds in the gas.
The total kinetic energy of the gas.

How are we doing?
Give us your feedback and let us know how we can improve
How does an increase in temperature typically affect the pressure of a gas in a closed container?
Pressure decreases.
Pressure remains the same.
Pressure increases.
Pressure fluctuates randomly.
A container of gas has its volume doubled and its temperature halved. If the initial pressure was P, what is the final pressure?
4P
P
P/4
2P
Which of the following is a common mistake when solving problems related to the kinetic theory of gases?
Correctly applying the ideal gas law.
Confusing temperature with heat.
Properly accounting for all forces.
Using the correct units for all variables.