reversible and irreversible  [ENDORSED]


and

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Hannah Guo 3D
Posts: 56
Joined: Fri Sep 29, 2017 7:06 am

reversible and irreversible

Postby Hannah Guo 3D » Tue Jan 23, 2018 7:23 am

I'm a little bit confused about formulas for reversible and irreversible work, and formulas to use when P or V is constant. Can someone please explain? Thank you!

Riya Pathare 2E
Posts: 74
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Re: reversible and irreversible

Postby Riya Pathare 2E » Tue Jan 23, 2018 8:59 am

The main formula for internal energy is deltaU = deltaH - PdeltaV however when pressure is constant we can say that deltaH = q and when volume is constant that means deltaV will equal 0 since there was no change so deltaU = deltaH.

Chem_Mod
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Re: reversible and irreversible  [ENDORSED]

Postby Chem_Mod » Tue Jan 23, 2018 9:22 am

In class tomorrow (Wed) I will go through reversible and irreversible expansion in detail.


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