Question

Which statements describe phase changes? Check all that apply.
1) Particles in a liquid need to move more slowly in order to freeze.
2) Attractive forces overcome the motion of particles when a solid sublimes.
3) Attractive forces between the particles in a liquid are broken when a liquid boils.
4) Particles in gas move fast enough to make more attractive forces when the gas condenses.


the answers are 1 & 3.

Answer 1

The correct answers are option One and option Three
1&3

Answer 2

The statements that describe phase changes are particles in a liquid need to move more slowly in order to freeze and attractive forces between the particles in a liquid are broken when a liquid boils.

For better understanding let's explain what it means

• A phase change is simply known as a physical process. This is where a substance undergoes one phase to another and the change happens only by addition or removal of heat at a known temperature of the substance.

• Heat removal from a substance alters (change) a gas to a liquid or vice versa.

From the above we can therefore say that the answer The statements that describe phase changes are particles in a liquid need to move more slowly in order to freeze and attractive forces between the particles in a liquid are broken when a liquid boils, is correct

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