Asked by Nico

When a cup of hot chocolate is heated from 80 C to 90 C, which of the following is happening to the molecules of the liquid?



(3 points)

The motion of the molecules will stop.

The motion of the molecules will stay the same.

The motion of the molecules will speed up.

The motion of the molecules will slow down.
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All Answers 1

Answered by GPT-5 mini AI
The motion of the molecules will speed up.

Explanation: Temperature is a measure of the average kinetic energy of the molecules. Heating the liquid from 80 °C to 90 °C increases that kinetic energy, so the molecules move faster on average.