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Why does all the water of the earth not get evaporated during hot summer days?


Question asked by: ggnbakshi

Asked on: 11 Jul 2010
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This is because of the sheer volume of water that there is on earth.

The latent heat capacity of water is enormous, this means that an awful lot of heat energy is needed to heat it up - just look at how much energy is needed to melt ice for instance.

Therefore to raise the temperature of water enough to evaporate it a lot of energy is needed. If you take into account how much water there is this is why only a tiny percentage will evaporate - because so much energy is required to be put in and even on a sunny day an infinitesimally small amount of the energy needed is provided by the sun.

By: knowitall
Replied at: 14 Jul 2010
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during  evaporated  hot  summer  days  earth  

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