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Factors Affecting Melting Point

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Question

What happens to the melting point of ice when we increase the pressure?

A

Increases

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B

Decreases

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C

Remains the same

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D

None of these

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Solution

The correct option is B
Decreases

The melting point of the substances which contract on melting (like ice) decreases by the increase in pressure.
On the other hand, the melting point of the substances (such as wax, lead) which expand on melting, increases by the increase in pressure.

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Factors Affecting Melting Point

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