Gases and KMT

According to the kinetic molecular theory, a gas consists of molecules in constant fixed motion.

• True

• False

According to the kinetic molecular theory, all collisions between gas molecules are inelastic; all kinetic energy is lost.

• True

• False

According to the kinetic molecular theory, the volume actually occupied by the molecules of a gas is negligibly small; the vast majority of the volume of the gas is empty space through which the gas molecules are moving.

• True

• False

In the KMT, pressure is the force exerted against the wall of a container by the continual collision of molecules against it.

• True

• False

Tags

NGSS.HS-PS2-1

The total kinetic energy of a collection of gas molecules is inversely proportional to the absolute temperature of the gas.

• True

• False

What is the basis of the kinetic molecular theory?

• Molecules are in constant motion.

• Molecules only stop sometimes.

• Approximately half the molecules are stationary.

• It is impossible to tell if a molecule is moving or not.

Tags

NGSS.HS-PS3-2

A gas that conforms exactly to the four assumptions of the KMT is called a(n)...

• Model gas

• Ideal gas

• Perfect gas

• Real gas

Any gas that does NOT conform to the four assumptions of the KMT is called a(n)...

• Complex gas

• Imperfect gas

• Real gas

• Specific gas

True or false?  All gases expand to fill their container.

• True
• False

When gas particles escapes through tiny holes, often the size of molecules or atoms this is known as

• Effusion

• Diffusion

• Osmosis

• Gas escape