Ideal gases

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Jordan_Wesson_2J
Posts: 59
Joined: Fri Sep 28, 2018 12:26 am

Ideal gases

Postby Jordan_Wesson_2J » Thu Feb 14, 2019 10:29 pm

If you were given the specific heat capacity of an ideal gas at constant pressure or volume would that be the same as calculate 5/2*R or 3/2*R, respectively? If so which is more accurate?

Nicolette_Canlian_2L
Posts: 77
Joined: Fri Sep 28, 2018 12:25 am
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Re: Ideal gases

Postby Nicolette_Canlian_2L » Thu Feb 14, 2019 10:42 pm

rather than just using the ideal gas constant, you use 5/2R and 3/2R as the constants depending on whether volume or pressure is constant.

Helen Zhao 1F
Posts: 31
Joined: Fri Sep 28, 2018 12:20 am

Re: Ideal gases

Postby Helen Zhao 1F » Fri Feb 15, 2019 1:05 pm

If you were given the specific heat capacity I would use the given value but it should equal 5/2 R if pressure is constant and 3/2R if volume is constant.

LaurenJuul_1B
Posts: 65
Joined: Fri Sep 28, 2018 12:17 am

Re: Ideal gases

Postby LaurenJuul_1B » Fri Feb 15, 2019 1:27 pm

5/2 is for when pressure is constant and 3/2 is for when volume is constant

Jack Hewitt 2H
Posts: 67
Joined: Fri Sep 28, 2018 12:27 am

Re: Ideal gases

Postby Jack Hewitt 2H » Tue Mar 05, 2019 2:26 pm

You should use 5/2R if pressure is constant and 3/2R if volume is constant.


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