Cv and Cp

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Karina Kong 2H
Posts: 98
Joined: Thu Jul 25, 2019 12:16 am

Cv and Cp

Postby Karina Kong 2H » Wed Feb 05, 2020 12:32 am

Why is the heat capacity for constant pressure greater than the heat capacity at constant volume?

Shivam Rana 1D
Posts: 106
Joined: Fri Aug 09, 2019 12:16 am

Re: Cv and Cp

Postby Shivam Rana 1D » Wed Feb 05, 2020 2:23 am

At constant volume, the heat goes towards raising temperature but at constant pressure, some go towards work.

Connor Chappell 2B
Posts: 59
Joined: Wed Feb 20, 2019 12:16 am

Re: Cv and Cp

Postby Connor Chappell 2B » Wed Feb 05, 2020 8:56 am

Under constant pressure, some of the heat can go into doing work in order to expand or compress against the surroundings. Under constant volume, no work can be done.

Eunice Nguyen 4I
Posts: 100
Joined: Sat Aug 17, 2019 12:17 am

Re: Cv and Cp

Postby Eunice Nguyen 4I » Wed Feb 05, 2020 9:33 am

When heat is added under constant pressure, the substance expands and does work, whereas when heat is added under a constant volume, no work is done.

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