Is energy absorbed or released when it consenses?

Question

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Answer 1

Condensation causes heat to be released (i.e., condensational warming due to latent heat release).

For more information check out this site:

http://jersey.uoregon.edu/~mstrick/hydrosphere/Lectures_hydro/Climate.html#Phase

Answer 2

When a liquid, such as water, changes its state from a solid, ice to a liquid, water, heat is required to change the phase even though the temperature remains the same. This is called latent heat. When water evaporates to water vapour, latent heat is also required to convert liquid water to water vapour while the temperature remains the same.

In the reverse process, water vapour condensing to liquid water releases latent heat and so does water freezing to ice. It is the release of latent heat that provides the fuel for the development of rain clouds, thunderstorms, hurricanes - you name it.

Answer 3

Energy is absorbed when vapor condenses to liquid.