What is true about a liquid that has been converted to its solid state?
a. the kinetic energy of its molecules has increased.
b. the kinetic energy of its molecules has decreased.
c. the kinetic energy of its molecules is unchanged.
d. the molecules of the solid do not have any kinetic energy.

The correct answer is option B

Explanation:

During change in state of matter energy of the molecules also changes.When any matter changes its state from liquid to solid the kinetic energy of the molecules of that matter also changes that is kinetic energy of the molecules decreases.Due to this decrease in kinetic energy the molecules of matter in their liquid state settle down and get converted into solid state.

Hence, the correct answer is option B.

relative humidity is a measure of the amount of moisture in the air relative to the total amount of moisture the air can hold.

so d

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