Gas Laws Review

Which of the following affect the pressure a gas exerts on its container. Select ALL that apply!

• Mass of the particle

• Size of the particle

• Volume of the container

• Temperature of the gas

• The number of moles of gas in the container

Tags

NGSS.HS-PS3-4

The pressure on a gas increases, and the volume of the gas increases. Which of the following could explain this situation?

• Increased pressure always results in a volume increase because the particles spread out

• The temperature of the gas also increased

• The temperature of the gas decreased

• None of the above; this is impossible

If a balloon is cooled what will happen to the volume?

• Volume will increase

• Volume will decrease

• Volume will not change

Tags

NGSS.MS-PS1-4

When a cold tire is inflated to a certain pressure and then is warmed up due to friction with the road, the pressure increases. This happens because the

• air molecules hit the walls of the tire less frequently

• rubber in the tires reacts with oxygen in the atmosphere

• air molecules speed up and collide with the tire walls more often

• air molecules diffuse rapidly through the walls of the tire.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Which of the following is NOT a unit of Pressure?

• mmHg

• atm

• kelvin

• kPa

A gas is under 750 mm Hg of pressure. What is the pressure in atm?

1 atm = 760 mm Hg

• 1.013 atm

• 0.987 atm

• 760 atm

• 0.0013 atm

A sample of H2(g) and a sample of N2(g) at the same temperature and pressure contain the same number of molecules. Each sample must have

• the same volume, but a different mass

• the same mass, but a different volume

• both the same volume and the same mass

• neither the same volume nor the same mass

A gas is under 110 kPa of pressure. What is the pressure in atm?

1 atm = 101.3 kPa

• 101.3 atm

• 11,143 atm

• 1.09 atm

• 0.921 atm

According to Charles Law, if Temperature of a gas increases Volume will also....

• Increases

• Decreases

• Stays the same

• This is an example of Charles's law
• This is an example of Boyle's law