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Question

When we cool a gas below its condensation point, the KE of its molecules ____________.

A
increases
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B
decreases
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C
remains the same
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D
first increases then decreases
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Solution

The correct option is B decreases
When we cool the gas below its condensation point, K.E. of molecules decreases.

As substance goes from gas to liquid freedom of movement of molecules decreases.

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