Gases Review

At a constant pressure, the volume decreases.  What happens to the temperature?

• increases
• decreases
• stays the same

At a constant volume, the pressure increases.  What happens to the temperature?

• increases
• decreases
• stays the same

At a constant temperature, the volume decreases.  What happens to the pressure?

• increases
• decreases
• stays the same

Which of the following explains the change in pressure when volume increases?

• As the volume increases, the particles slow down, causing less collisions and less pressure.
• As the volume increases, the particles speed up, causing more collisions and more pressure.
• As the volume increases, the particles have more space to move and collide less with the walls , causing pressure to decrease.
• As the volume increases, the particles have more space to move and collide less with the walls , causing pressure to increase.

A hot air balloon uses heat to inflate the balloon. What two variables does this relate?

• Pressure and Volume

• Volume and Temperature

• Temperature, Volume, and Pressure

• Temperature and amount of gas

The volume of a container is cut in half, what happens to the pressure?

• It is also cut in half.
• It is doubled.
• It is cut by 1/4th
• It is quadrupled.

What happens to the temperature of a gas if the pressure is cut by 1/3rd?

• The temperature is also cut by 1/3rd.
• The temperature triples.
• The temperature is 3 K less.
• The temperature is 3 K more.

Convert -53 ⁰C to K

• 326 K
• -53 K
• 220 K
• Probably impossible.

Which of the following would increase the pressure on a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

___________________ is a measure of the average kinetic energy of particles.

• Volume

• Pressure

• Moles

• Temperature