Explain why the specific latent heat of vaporization in much higher than the specific lantent heat of fusion for the same substance. 

Explain why the specific latent heat of vaporization in much higher than the specific lantent heat of fusion for the same substance. 

Latent heat of fusion only supply energy to breaks down the forces that keep ordered pattern of molecules is solid crystalline structure to form a liquid. The potential energy of the molecules increase but the average kinetic energy and temperature of the molecules remain unchanged.

While,

Latent heat of vaporization is always greater that latent heat of fusion because energy is supplied to break down stronger molecular bonds in liquids and to provide energy to liquid molecules in order to expand into gas molecules against atmospheric pressure.

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Dr. Bbosa Science

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