2.1 Kinetic particle model of matter

In terms of the momentum of molecules, explain how a gas exerts pressure on the walls of its container.

[4]

A fixed mass of gas of volume $V_1$ is at a pressure $p_1$ . It expands to a volume $V_2$ .

Complete the equation for the final pressure $p_2$ of the gas when the gas expands at constant temperature.

p_2 =

[1]

A fixed mass of gas of volume $V_1$ is at a pressure $p_1$ . It expands to a volume $V_2$ .

State and explain how the final pressure compares with $p_2$ when the temperature of the gas decreases during the expansion.

[3]

In terms of the momentum of molecules, explain how a gas exerts pressure on the walls of its container.

[4]

A fixed mass of gas of volume $V_1$ is at a pressure $p_1$ . It expands to a volume $V_2$ .

Complete the equation for the final pressure $p_2$ of the gas when the gas expands at constant temperature.

p_2 =

[1]

A fixed mass of gas of volume $V_1$ is at a pressure $p_1$ . It expands to a volume $V_2$ .

State and explain how the final pressure compares with $p_2$ when the temperature of the gas decreases during the expansion.

2.1 Kinetic particle model of matter Questions