constant pressure

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Belle Calforda3f
Posts: 67
Joined: Fri Sep 29, 2017 7:07 am

constant pressure

Postby Belle Calforda3f » Tue Feb 13, 2018 1:32 pm

When can we assume constant pressure?

Qining Jin 1F
Posts: 53
Joined: Fri Sep 29, 2017 7:07 am

Re: constant pressure

Postby Qining Jin 1F » Tue Feb 13, 2018 2:36 pm

If you are given enthalpy (H), then you can assume constant pressure, since q=deltaH under constant pressure

mayapartha_1D
Posts: 50
Joined: Fri Sep 29, 2017 7:07 am

Re: constant pressure

Postby mayapartha_1D » Mon Feb 19, 2018 3:07 pm

Hi Bella!

Usually the book or test will tell you are using a constant pressure. Unless they give another pressure, I think it's safe to assume that the pressure is constant.


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