Question

question 8 of 20 when a substance changes from a liquid to a gas, what happens to the motion of its particles? a. they move more quickly and independently. b. they move more slowly and are fixed in place. c. they move at the same speed but in random directions. d. they move at the same speed and in the same direction.

Explanation:

In a liquid, particles are close - packed but can move past one another. When a substance changes to a gas, the particles gain more energy. This increased energy allows them to move more quickly and independently as the intermolecular forces are much weaker in gases compared to liquids.

Answer:

A. They move more quickly and independently.