Demo 3: Balloon in a Vacuum Pump - Amazing Experiment with Mr Pauller

Which law is the balloon in the bell jar showing?

• Avogadro's Law

• Boyle's Law

• Charles' Law

• Dalton's Law

What happens to the volume of the balloon when the air is pumped out of the bell jar?

• increases

• decreases

What happens to the volume of the balloon when the air is allowed back into the bell jar?

• increases

• decreases

What variable is being held constant during this demonstration?

• temperature

• pressure