Gay-Lussac's Law: Gas Pressure and TemperatureRelationship

To use Gay-Lussac's Law, which of the following needs to remain constant?

• volume

• pressure and temperature

• pressure

• temperature and volume

• temperature

Assuming the volume is held constant, what happens to the pressure of a gas when theabsolute temperature doubles?

• It is halved.

• It cannot be predicted.

• It is doubled.

• It is quadrupled.

• It remains unchanged.

A 4 L sample of gas is heated from 20 K to 200 K. Its initial pressure was 60 torr, whilethe volume remained constant. What is its nal pressure?

• 15 torr

• 40 torr

• 180 torr

• 240 torr

• 600 torr

A sample of an ideal gas is heated from 200 degrees Celsius to 400 degrees Celsius, whileholding the volume constant. If the initial pressure is 45 torr, then what is the nalpressure?

• 23 torr

• 64 torr

• 90 torr

• 200 torr

• 245 torr

If a gas with a pressure of 6 atmospheres is cooled from 500 K to 250 K, then what is itsnal pressure if the volume does not change?

• 0.5 atmospheres

• 3 atmospheres

• 9 atmospheres

• 12 atmospheres

• 250 atmospheres