Molar Heat Capacity at Cp s. Cv

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Angela Prince 1J
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Joined: Sat Aug 24, 2019 12:17 am

Molar Heat Capacity at Cp s. Cv

Postby Angela Prince 1J » Thu Jan 30, 2020 11:28 am

I am kinda confused on the differences between the molar heat capacity of a gas at constant volume versus constant pressure. Why does it matter in terms of molar heat (is it applicable for specific heat as well)? Can you use the q=nCdeltaT equation for either situation?

Kate Osborne 1H
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Joined: Fri Aug 30, 2019 12:16 am

Re: Molar Heat Capacity at Cp s. Cv

Postby Kate Osborne 1H » Thu Jan 30, 2020 1:30 pm

molar heat capacity of the same gas is different at a constant pressure vs a constant volume, you can use that equation with both Cp and Cv it would just result in a different answer for Cp vs Cv

AKhanna_3H
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Joined: Wed Sep 18, 2019 12:19 am

Re: Molar Heat Capacity at Cp s. Cv

Postby AKhanna_3H » Thu Jan 30, 2020 1:35 pm

Subscript p refers to constant pressure and subscript v refers to constant volume.

Ayushi2011
Posts: 101
Joined: Wed Feb 27, 2019 12:17 am

Re: Molar Heat Capacity at Cp s. Cv

Postby Ayushi2011 » Thu Jan 30, 2020 3:57 pm

P is the constant pressure and V indicates temperature.

ValerieChavarin 4F
Posts: 99
Joined: Wed Sep 18, 2019 12:18 am

Re: Molar Heat Capacity at Cp s. Cv

Postby ValerieChavarin 4F » Thu Jan 30, 2020 4:05 pm

Both can be used for a gas, however they do not yield the same answer. The p subscript indicates constant pressure while the v is for volume.


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