Question

What happens to a gas when heat is removed?

(A.)The particles have more kinetic energy.
(B.)The particles move faster and become less compact.
(C.)The particles move slower until the matter changes into a liquid.
(D.)The particles reduce their size by at least half.

Answer 1

When heat is removed from a gas, the particles move slower and may undergo a phase change to become a liquid.

Step-by-step explanation:

When heat is removed from a gas, the average kinetic energy of the gas particles decreases. This causes the particles to move slower. As a result, the gas may undergo a phase change and become a liquid if it is cooled enough.

For example, when water vapor is cooled, its particles lose kinetic energy and slow down. Eventually, the water vapor condenses into liquid water.

In summary, when heat is removed from a gas, the particles move slower and may undergo a phase change to become a liquid.

Answer 2

C). The particles move slower until the matter changes into a liquid.

Step-by-step explanation:

When heat is removed the particles condense turning it into a liquid and further cooling will turn the gas into a solid.