In which of the following phase change processes, kinetic energy of the particles decreases ?

Deposition

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Fusion

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Solidification

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Condensation

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Solution

The correct options are
A Deposition
C Solidification
D Condensation
$∙$ The order of kinetic energy of the particles : Gas > Liquid > Solid .
$∙$ Deposition is a phase change process in which a gas is converted into solid. Therefore, kinetic energy of the particles decreases.
$∙$ Fusion is a phase change process in which a solid is converted intoliquid. Therefore, kinetic energy of the particles increases.
$∙$ Solidification is a phase change process in which a liquid is converted into solid. Therefore, kinetic energy of the particles decreases.
$∙$ Condensation is a phase change process in which a gas is converted into liquid. Therefore, kinetic energy of the particles decreases.

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