True or false (if false explain why): It takes the same amount of energy for dep

Question

True or false (if false explain why): It takes the same amount of energy for deposition of water vapor to ice as it takes to condense water vapor to water and then freeze it to ice. True or false (if false explain why): It takes the same amount of energy for deposition of water vapor to ice as it takes to condense water vapor to water and then freeze it to ice. True or false (if false explain why): It takes the same amount of energy for deposition of water vapor to ice as it takes to condense water vapor to water and then freeze it to ice.

Explanation / Answer

The amount of energy, i.e. the latent heat, released during deposition of water vapor to ice is about 680 calories per gram. While water vapor condenses to liquid water, the latent heat released is about 600 calories per gram. During the conversion of liquid water to ice, there is a latent heat release of about 80 calories per gram. So, the latent heat released during deposition is more or less equal to the energy released during condensation and freezing combined.

680 cal/g (Deposition) = 600 cal/g (Condensation) + 80 cal/g (Freezing)

Thus, it is true that it takes the same amount of energy for deposition of water vapor to ice as it takes to condense water vapor to water and then freeze it to ice.

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