## 6th edition 8.31

alanaarchbold
Posts: 68
Joined: Fri Sep 28, 2018 12:27 am

### 6th edition 8.31

How do you find the J/mol/degrees celsius number (sorry I forgot the name of it)? In this question that number was different for constant volume and fro constant pressure but how is it found? Thanks

Heesu_Kim_1F
Posts: 60
Joined: Fri Sep 28, 2018 12:18 am

### Re: 6th edition 8.31

R=8.314 J x C^-1 x mol^-1 is the gas constant.
(a) The molar heat capacity of a monatomic ideal gas at constant pressure is Cp,m = 5R/2 = (20.8 J x C^-1 x mol ^-1).
(b) The molar heat capacity of a monatomic ideal gas at constant volume is Cv, m = 3R/2 = (12.5 J x C^-1 x mol ^-1).

LorenzoDuvergne3I
Posts: 60
Joined: Fri Sep 28, 2018 12:25 am

### Re: 6th edition 8.31

Can you please explain how you know those values? Are they listed somewhere in the textbook?

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