8.3 Gas pressure related to T and V [Mastery check]

What causes pressure?

• The walls of the container
• The vacuum in the container
• The collisions of the particles
• Atmospheric pressure acting on the outside walls

The faster the gas particles move...

• the lower the force with which they collide with the walls of their container.

• the greater the force with which they collide with the walls of their container.

• has no impact on the force with which they collide with the walls of their container.

For a gas in a rigid container (constant volume), an increase in temperature means.......(Choose all that apply)

• more frequent collisions.

• more efficient collisions.

• more forceful collisions.

• more elastic collisions

Which of the following best explains the relationship between temperature and pressure?

• B means A, which means C, which means D.

• A means C, which means B, which means D.

• C means A, which means D, which means B.

• C means A, which means B, which means D.

Tick all of the correct options.

Increasing the temperature of a gas at fixed volume ....

• Increases the pressure

• Decreases the pressure

• Increases particle average kinetic energy

• Decreases particle average kinetic energy

• Increases the rate of collisions

Which of the following provides the best explanation for the relationship between pressure and volume?

• A means C, which means B.

• B means C, which means A.

• A means B, which means C.

Tick all of the correct options.

Decreasing the volume of a gas at fixed temperature......

• Increases the pressure

• Increases the number of particles

• Increases the rate of collisions

• Increases the number of particle per unit volume

At constant temperature, when the volume of a gas is decreased, what happens to its pressure?

• It increases

• It decreases

• It will vary

• It remains constant

At constant volume, when the temperature of a gas decreases, the pressure _______.

• decreases

• increases

• does nothing

• explodes

When the graph relating two variables is a straight line passing through the origin, the variables are ______ proportional to each other.

• directly

• indirectly