Question

1. when the molecules of gases are heated, the average kinetic energy of the molecules increases. * (1 point)

true
false

1. the random motion of gas particles causes a gas to expand until it fills its container. * (1 point)

true
false

1. a gas can flow into a space occupied by another gas. * (1 point)

true
false

Explanation:

1. For gas molecules, temperature is directly proportional to average kinetic energy; heating raises temperature, so kinetic energy increases.
2. Gas particles move randomly and freely, spreading out to fill the entire volume of their container.
3. Gases have high diffusivity due to their random motion, allowing them to mix and flow into spaces occupied by other gases.

Answer:

1. True
2. True
3. True