Gas Law Review

At constant pressure, when the temperature of a gas is decreased, what happens to its volume?

• it decreases

• it will vary

• it increases

• it remains constant

At constant temperature, when the volume of a gas is decreased, what happens to its pressure?

• It increases

• It decreases

• It will vary

• It remains constant

At constant volume, when the temperature of a gas decreases, the pressure _______.

• decreases

• increases

• does nothing

• explodes

Decreasing the quantity (moles) of gas inside of a container will cause the pressure to _______________.

• increase

• decrease

• remain the same

Which of these does not affect pressure?

• Temperature

• Volume

• Moles of gas

• All affect pressure

Pressure is a direct result of _____________________ the gas particles collide with the walls of the container.

• how hard

• how often

• both of these

• neither of these

Convert 56.0 $\degree$  C to K

• 217 K

• -217 K

• 273 K

• 329 K

Molar volume of any gas at STP

• 22.4 L
• 2.24 L
• 6.02 x 10²³ L
• 224 L

A 2.00 L sample of pure oxygen gas (O₂) is measured at STP. How many moles of oxygen is this?

• 24.4 mol

• 0.0075 mol

• 1.44 mol

• 0.0893 mol

What is the value of STP?

• 0 K and 1 atmosphere

• 0 C and 1 atmosphere

• 32 F and 1 atmosphere

• 100 C and 1 atmosphere