3/2R vs 5/2R
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Re: 3/2R vs 5/2R
3/2R is used when it is at constant volume for a monoatomic ideal gas
5/2R is used when it is at constant pressure for a monoatomic ideal gas
5/2R is used when it is at constant pressure for a monoatomic ideal gas
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Re: 3/2R vs 5/2R
Agreed. You know which one to use in the context of the problem, so it's important to identify what is being held constant in the given problem
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Re: 3/2R vs 5/2R
It is very important to know the difference between. 5/2R is used for constant pressure and 3/2R is used for constant volume. You will have to use either one depending on the context of the question.
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Re: 3/2R vs 5/2R
Is (3/2 R) the same as Cn when you are trying the change in entropy when there is a temperature difference?
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Re: 3/2R vs 5/2R
When it is constant pressure or constant volume. Or based on the shape of the molecules.
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Re: 3/2R vs 5/2R
3/2 R is used for Cv of an ideal monoatomic atom. 5/2R is for Cv of a linear molecule and for Cp of an ideal monoatomic atom.
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Re: 3/2R vs 5/2R
3/2 R is used for a monoatomic ideal gas at constant volume where 5/2 R is used is used for a monoatomic gas at constant pressure, or for a linear molecule at constant volume.
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Re: 3/2R vs 5/2R
In addition to the other answers, the heat capacity at constant volume and the heat capacity at constant temperature are always separated by a factor of R. (C)v,m = R + (C)p,m. So, for single atoms 3/2R is the (C)v,m and 5/2R is the (C)P,m, while linear atoms have a (C)v,m of 5/2R, and more complicated molecules have a (C)v,m of 3R.
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