Answered

The temperature of a sample of liquid water changes from 50°C to 30°C. Which statement best explains the change
Chat must happen at the
molecular level?
O The molecules move more quickly and their average kinetic energy increases.
O The molecules move more slowly and their average kinetic energy decreases.
The molecules move more quickly and their average kinetic energy decreases.
O The molecules move more slowly and their average kinetic energy increases.



Answer :

GinnyAnswer

Final answer:

In the context of a temperature decrease from 50°C to 30°C in liquid water, the molecules move more slowly and their average kinetic energy decreases.


Explanation:

When the temperature of a sample of liquid water decreases from 50°C to 30°C, the molecules move more slowly and their average kinetic energy decreases. In this scenario, the cooling of the water causes a reduction in the average kinetic energy of the water molecules. As a result, the temperature decreases, and the molecules move more sluggishly.


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