Lesson 5: Gas Laws

A container holds 6.4 moles of gas. Hydrogen gas makes up 25% of the total moles in the container. If the total pressure is 1.24 atm. What is the partial pressure of hydrogen?

0.31 atm

Five gases combined in a gas cylinder have the following partial pressures: 3.00 atm (N2), 1.80 atm (O2), 0.29 atm (Ar), 0.18 atm (He), and 0.10 atm (H). What is the total pressure that is exerted by the gases?

5.37 atm

Which law states that the volume and absolute temperature of a fixed quantity of gas are directly proportional under constant pressure conditions?

Charles's Law

Which law states that the pressure and absolute temperature of a fixed quantity of gas are directly proportional under constant volume conditions?

Gay- Lussac's Law

The absolute temperature of a gas is increased four times while maintaining a constant volume. What happens to the pressure of the gas?

It increases by a factor of four.

A scientist is measuring the pressure that is exerted by each of the following gases in the atmosphere: carbon dioxide, oxygen, and nitrogen. Which term most likely describes what she is measuring?

Partial pressure

The incomplete table below shows selected characteristics of gas laws. What are the variables in Gay- Lussac's Law?

Pressure and temperature

The incomplete table below shows selected characteristics of gas laws. Which constants would most likely be filled in the first row of the table?

Temperature and moles of gas

If two gases are present in a container, the total pressure in the container is equal to

The sum of the pressures that are exerted by each of the two gases

Which equation is derived from the combined gas law?

V1/T1 = V2/T2