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Question

The latent heat of vaporization of a substance is always greater than its latent heat of sublimation.


A

Greater than its latent heat of fusion

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B

Greater than its latent heat of sublimation

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Solution

The correct option is B

Greater than its latent heat of sublimation


The latent heat of vaporization is always greater than latent heat of fusion because in liquid to vapour phase change there is a large increase in volume. Hence more heat is required as compared to solid to liquid phase change.


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