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Latent Heat of Fusion of Ice

by MadmanMurray
Tags: fusion, heat, latent
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MadmanMurray
#1
Mar5-09, 05:12 PM
P: 76
I did a lab experiment were we measured the latent heat of fusion of ice but im not quite sure what that is. I read that latent heat of fusion is the energy(heat) it takes to change liquid to solid. Is that true? Why would it take heat to freeze something?
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alxm
#2
Mar5-09, 05:20 PM
Sci Advisor
P: 1,866
Quote Quote by MadmanMurray View Post
I did a lab experiment were we measured the latent heat of fusion of ice but im not quite sure what that is. I read that latent heat of fusion is the energy(heat) it takes to change liquid to solid. Is that true? Why would it take heat to freeze something?
Confusion like that is why 'latent heat of fusion' is now referred to as 'enthalpy of fusion' instead.

And in the case of water it doesn't require energy, melting is exothermic and freezing is endothermic.
By the same amount.


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