Question

examples of latent heat in daily life with explanation

Answer 1

Latent Heat in the Kitchen

you are undoubtedly familiar with the large amount of heat needed to bring about this phase transition of water from liquid to gas. Imagine a pot of boiling water. To keep it on the boil lots of heat has to be supplied. As soon as the heat is reduced it stops boiling and steam stops coming off. Consider the flame or other heat source that is needed to keep it boiling. You wouldn't want to contact such a concentrated heat source directly. (Warning: please do not put your hand on the stove to confirm this!)

The truly amazing thing about the latent heat of evaporation of water is that when the phase change is reversed, when water vapor condenses into liquid water, the same amount of heat is released. This isn't as obvious to us as the amount of heat consumed in boiling, but you may have experienced it if you have gotten your hand in the stream of steam escaping from a teakettle.

This is the reasons that burns caused by steam can be so severe. Besides the heat of the steam, some of the steam will condense on the skin, releasing its latent heat of condensation. This is equal to the latent heat of vaporization of the same amount of water. You wouldn't want to put your hand in the flame needed to vaporize even a small amount of water. But when that small amount of water condenses out of steam on your skin it releases just that amount of heat. This is why a burn from steam can be more severe than a burn by boiling water itself, if the quantity of steam is significant.

Answer 2

Answer:

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Latent heat, energy absorbed or released by a substance during a change in its physical state (phase) that occurs without changing its temperature. ... The latent heat is normally expressed as the amount of heat (in units of joules or calories) per mole or unit mass of the substance undergoing a change of state.