Gas Laws and Properties

What is a characteristic of gas?

• It is only found in outer space.

• It has a fixed shape and volume.

• It is made of tiny molecules and atoms that are constantly moving.

• It can only be found dissolved in liquids.

According to Boyle's Law, if the volume of a gas in a closed system decreases while the temperature and amount of gas remain constant, what happens to the pressure?

• The pressure decreases.

• The pressure increases.

• The pressure stays the same.

• The pressure first decreases then increases.

Who performed the experiments that led to the discovery of the relationship between gas pressure and volume, which later became known as Boyle's Law?

• Robert Boyle

• Richard Townley

• Henry Power

• Jacques Charles

Which equation represents the Ideal Gas Law?

• PV = k

• V/T = b

• V/n = a

• PV = nRT

What makes a balloon inflate?

• The air outside pushing it.

• The molecules inside bouncing against its walls.

• The balloon material stretching on its own.

• Static electricity pulling the balloon outwards.

What is the standard unit for measuring pressure in science?

• Liters

• Kilograms

• Pascals

• Meters

If the space a gas occupies gets smaller, what generally happens to its pressure?

• The pressure goes up.

• The pressure goes down.

• The pressure stays the same.

• The gas turns into a liquid.

What is Absolute Zero?

• The temperature where water freezes.

• The temperature where all particles stop moving.

• The average temperature of the Earth.

• The temperature where water boils.