Gas Laws Review

At an ocean depth of 10.0 m, a diver’s lung capacity is 2.40 L. The air temperature is 32.0°C and the pressure is 101.30 kPa. What is the volume of the diver’s lungs at the same depth, at a temperature of 21.0°C and a pressure of 141.20 kPa? Which Gas Law will you use to solve?

• PV=nRT

• Combined Gas Law

• Boyles Law

• Charles Law

What is the molar volume of gas at STP?

• 1 mole of gas occupies 22.4L

• 1 L of gas contains 1 mole

• 1 mole of gas contains 6.02 x 10 ²³ particles

• The answer will vary depending on the type of gas

A steel tank with a volume of 9.583 L contains N2 gas under a pressure of 4.972 atm at 31.8 °C. Calculate the number of moles of N2 in the tank. Which gas law will you use to solve?

• PV=nRT

• Combined Gas Law

• Boyles Law

• Charles Law

A 40.0-L sample of fluorine is heated from 90.0°C to 186.0°C. What will happen to the volume?

• Increase

• Decrease

• Stay the same

• It will explode

What happens in a fixed volume container when the temperature of the gas inside is increased?

• The pressure increases because the particles of gas are attracted to each other

• The pressure decreases because there are fewer collisions of gas particles with the sides of the container.

• The pressure increases because there are more frequent collisions of gas particles with the sides of the container.

• The pressure is fixed because the volume will change.

Tags

NGSS.HS-PS3-2

When the volume of a container is increased at a constant temperature....

• the amount of gas increases to make up for the loss of pressure

• the pressure increases because the temperature increases.

• the pressure remains constant

• the pressure decreases because the particles have fewer collisions with the sides of the container.

Air is added to an easily expandable container. The pressure inside the container

• increases

• decreases

• stays the same

• goes to zero

The relationship between pressure and volume can be described as

• inverse

• direct

• indirect

• parallel

The relationship between pressure and temperature can be described as

• inverse

• direct

• indirect

• negative

What does Gay-Lussac’s Law state about the relationship between pressure and temperature:

• pressure is inversely proportional to volume at constant temperature.

• pressure is directly proportional to temperature at constant volume.

• pressure and temperature have no relationship

• volume is directly proportional to temperature at constant pressure.