Heat Capacity at Constant V/P

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MaryBanh_2K
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Joined: Wed Sep 18, 2019 12:21 am

Heat Capacity at Constant V/P

Postby MaryBanh_2K » Thu Feb 06, 2020 11:29 pm

I understand that heat capacity at a constant volume is (delta U)/(delta T) bc at constant volume delta U equals q. However, why is heat capacity at constant pressure (delta H)/(delta T)?

Hannah Lee 2F
Posts: 117
Joined: Thu Jul 11, 2019 12:15 am

Re: Heat Capacity at Constant V/P

Postby Hannah Lee 2F » Fri Feb 07, 2020 10:12 am

It is because heat at constant pressure is equal to change in enthalpy: qp = deltaH.

Therefore, heat capacity will be equal to qp / deltaT --> deltaH / deltaT.


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