Phase Changes

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Raquel Rodriguez
Posts: 68
Joined: Fri Sep 28, 2018 12:26 am

Phase Changes

Postby Raquel Rodriguez » Sat Feb 23, 2019 3:42 pm

What equation is used for phases changes?

Christina Chang 1C
Posts: 34
Joined: Thu May 10, 2018 3:00 am

Re: Phase Changes

Postby Christina Chang 1C » Sat Feb 23, 2019 4:21 pm

For just a phase change it would be the moles of substance times the delta heat of fusion for that substance. If there is heat involved then you would also have to account for that too with q=mCdeltaT.

fgalasso1b
Posts: 32
Joined: Wed Oct 03, 2018 12:15 am

Re: Phase Changes

Postby fgalasso1b » Sat Feb 23, 2019 4:31 pm

q= m deltaH

heat = mass x enthalpy of fusion/vap

Hadji Yono-Cruz 2L
Posts: 64
Joined: Fri Sep 28, 2018 12:26 am

Re: Phase Changes

Postby Hadji Yono-Cruz 2L » Sun Feb 24, 2019 12:58 am

You can use mass x delta H of phase change or number of moles x delta H of phase change depending on what you are given.


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