Phase Change Question

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Phase Change Question

Postby jonathanshi_1A » Tue Jan 17, 2017 12:16 pm

In the Phase Change Diagram, the length of the s&l is shorter than the length of l&g. Why does it take more energy to break the bond from liquid to gas than from solid to liquid?

Derek Lee 2K
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Joined: Sat Jul 09, 2016 3:00 am

Re: Phase Change Question

Postby Derek Lee 2K » Tue Jan 17, 2017 1:11 pm

It has to do with the bonds in each phase. Solid to liquid, you're just loosening the bonds to the point that they can slide next to each other (liquid). However, it requires more energy to vaporize than to melt because you're completely breaking apart the bonds in water which requires much more energy.

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