States of Matter

A ______ gas is a theoretical gas that fits perfectly into the assumptions of the kinetic molecular theory.

• real

• ideal

In an elastic collision, no kinetic energy is lost

• true

• false

Gas particles consist of large particles that are far apart from one another

• true

• false

Most of the volume of a gas is empty space.

• true

• false

Gas particles are always in motion.

• true

• false

According to the kinetic molecular theory of matter, there are attractive forces between gas particles.

• true

• false

Kinetic energy and temperature are directly proportional.

• true

• false

In the equation, KE = 1/2 mv², m stands for

• mass

• moles

In a mixture of hydrogen and oxygen, which gas has particles, on average, moving much faster?

• hydrogen

• oxygen

The word fluid refers to

• liquids

• gases

• liquids and gases

• none of these