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# If water is converted into ice and maintained at ${0^0}C$, which of the following statements is true for the molecules of the substance?(A) Only kinetic energy decreases(B) Only potential energy decreases (C) Both the energy increases(D) Potential energy increases and kinetic energy decreases

Last updated date: 13th Jun 2024
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Hint We know that the potential energy of a system decreases with the state change $gas - liquid - solid$. It is also noted that ice has less potential energy. We will use this concept and select the most appropriate option.

It is given in the question that water is converted into ice and maintained at ${0^{\rm O}}C$ then we have to find the correct statement in the given options.
We know that kinetic energy is associated with flowing and moving objects whereas potential energy is associated with a static object. In our question, it is mentioned that water is converted into ice and maintained at ${0^{\rm O}}C$. It means it is stored and the energy associated with it will be potential- energy.
We also know that the potential energy of a system decreases with the state change $gas - liquid - solid$. As we know that solid has the least potential energy whereas gases have more potential energy. Even in our question, the static water is converted to ice It means when the water is converted into ice its potential energy decreases.
$gas > liquid > solid$