Gas Laws Review

How do you convert Celsius to Kelvin?

• Add 273.15

• Subtract 273.15

• They are the same thing

What will happen to the volume of a gas under constant temperature if the pressure increases?

• Increase
• Decrease
• Nothing
• Explosion!

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

• Increase the Temperature
• Pump in more moles of gas

• Decrease the volume
• All of these

Which of the following is NOT a unit of Pressure?

• mmHg

• atm

• kelvin

• kPa

Which equation would you use to solve the following problem:

"The volume of of 300 mL of gas at 1 atm is decreased to 100 mL. What is the new pressure?"

• P₁V₁ = P₂V₂

• V₁/T₁ = V₂/T₂

• (P₁V₁)/T₁ = (P₂V₂)/T₂

• None of the above

Each of the flasks shown below contain the same number of molecules at the same temperature.In which flask will the pressure be the highest?

• Flask 1
• Flask 2
• Flask 3
• Flask 4

Which equation would you use to solve the following problem:

"A gas occupies 2 L of space at 0 C. What will its volume be at 100 C?"

• P₁V₁ = P₂V₂

• V₁/T₁ = V₂/T₂

• (P₁V₁)/T₁ = (P₂V₂)/T₂

• None of the above

A student inflates a balloon with helium then places it in the freezer. The student should expect

• the balloon's volume to increase

• the balloon's volume to decrease

• the balloon's moles to increase

• the balloon's moles to decrease

When Volume increases then Pressure must...

• Increase
• Decrease

A sample of gas is in a flexible container at room temperature. What happens to the pressure as volume increases?

• pressure stays the same

• pressure decreases

• pressure increases