Particle Theory and Gas Pressure

A container with a volume of 2000m³ contains a gas at a pressure of 500Pa. What happens to the volume if the gas pressure drops to 400Pa?

• It stays at 2000m³

• It rises to 2500m³

• It rises to 4000m³

• It reduces to 1600m³

• It reduces to 1900m³

What assumption do we make when we use the formula P1V1 = P2V2?

• There is no change in pressure

• There is no change in volume

• There is no change in temperature

• There is no change in your mood

• There is no change in gravitational field strength

Tick all of the correct options.

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

• Increases the pressure

• Decreases the pressure

• Increases particle kinetic energy

• Decreases particle kinetic energy

• Decreases the number of particle collisions

Tick all of the correct options.

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

• Increases the volume

• Decreases the volume

• Increases particle kinetic energy

• Decreases particle kinetic energy

• Decreases the number of particle collisions

Tick all of the correct options.

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

• Increases the pressure

• Decreases the pressure

• Increases the number of collisions

• Decreases the number of particle collisions

A gas at a pressure of 300 Pa and a volume of 340 cm³ is compressed to a volume of 280 cm³. Calculate the new pressure of the gas, assuming that the temperature remains constant.

A gas at a pressure of 600 Pa and a volume of 500cm³ is compressed to a volume of 350cm³. Calculate the new pressure of the gas, assuming that the temperature remains constant.

A gas at a pressure of 1500 Pa and a volume of 120 cm³ is inflated to a volume of 400 cm³. Calculate the new pressure of the gas, assuming that the temperature remains constant.

A gas with a pressure of 700 kPa has a volume of 1.5 dm³. The volume of the container changes to 0.8 dm³. Calculate the new pressure of the gas, assuming that the temperature remains constant.

A gas with a pressure of 125 kPa has a volume of 6 dm³. The volume of the container changes to 8 dm³. Calculate the new pressure of the gas, assuming that the temperature remains constant.