The Ideal Gas Law: Crash Course Chemistry #12

What happens to the pressure inside a balloon if its volume is decreased, assuming the temperature and amount of gas remain constant?

• The pressure increases.

• The pressure decreases.

• The pressure stays the same.

• The pressure fluctuates randomly.

Who was primarily responsible for the experiments that led to the theory known as Boyle's Law?

• Robert Boyle

• Richard Townley

• Henry Power

• Jacques Charles

According to Charles' Law, what is the relationship between the volume and temperature of a gas when the pressure remains constant?

• Volume multiplied by temperature is constant.

• Volume divided by temperature is constant.

• Volume plus temperature is constant.

• Volume minus temperature is constant.

Which of the following variables is NOT directly part of the Ideal Gas Law equation (PV = nRT)?

• Pressure (P)

• Volume (V)

• Mass (m)

• Temperature (T)

What causes a balloon to stay inflated?

• The rubber material stretching.

• Molecules inside the balloon bouncing against its inner walls.

• The air outside the balloon pushing inwards.

• The heat generated by the air inside.

What is the SI unit for pressure?

• Atmosphere (ATM)

• Kilopascal (kPa)

• Pascal (Pa)

• Pounds per square inch (PSI)

If the volume of a gas decreases while the number of particles and temperature remain constant, what happens to the pressure?

• It increases.

• It decreases.

• It stays the same.

• It becomes zero.

In the can crushing experiment, what force ultimately crushes the can?

• The cold temperature of the ice water.

• The condensation of water vapor inside the can.

• The external atmospheric pressure.

• The weakening of the can's metal due to heating.