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heat and energy transfer

What is the difference between latent heat of fusion and latent heat of vapourisation?

Latent heat is the energy required for a mass of substance to change state, from liquid to solid (fusion) or from liquid to gas, (vapourisation). The amounts of energy for a given substance are generally different in each case. For example the latent heat of water ice is 334 kJ/kg but water steam is 2260 kJ/kg. (thanks to http://en.wikipedia...org/wiki/Latent_heat)
10 January 2012
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