Gas Law Review

You buy your best friend a valentine balloon in a heated store. You go outside where it's COLD. What happens to the volume of the balloon?

• Increases

• Decreases

• Stays the same

Which graph shows the relationship between pressure and volume at constant temperature for a gas?

• (i)

• (ii)

• (iii)

• (iv)

Convert 15˚C to Kelvin.

• 15 K

• 100 K

• 258 K

• 288 K

What sample has the same number of molecules as 2.0 L of oxygen?

• 4.0 L of oxygen

• 2.0 L of carbon dioxide

• 2.0 g of oxygen

• 10. L of nitrogen

At constant T, as pressure is increased, the mass of a gas in a sealed container...

• Increases

• Decreases

• Stays the same

For a 10. L gas sample at constant pressure, if the temperature doubled, the volume would...

• Double

• Halve

• Stay the same

STP is...

• 0˚C and 101.3 atm

• 273 K and 1 kPa

• 273˚C and 1 atm

• 273 K and 101.3 kPa

A 5 L gas sample at STP changes to 0.8 atm and 298 K, what is the new volume?

• 101.3 L

• 633 L

• 0.68 L

• 5.7 L

What happens to the air pressure in your tires in the winter (assume the volume stays the same)?

• Increases

• Decreases

• Stays the same

Which of the following is true about ideal gases but not real gases?

• They have no intermolecular forces of attractions

• They move in constant, straight line motion

• They have average kinetic energy

• They collide without losing energy