## Unit Conversions

$w=-P\Delta V$
and
$w=-\int_{V_{1}}^{V_{2}}PdV=-nRTln\frac{V_{2}}{V_{1}}$

Alexis Kupka 1H
Posts: 21
Joined: Fri Sep 25, 2015 3:00 am

### Unit Conversions

When I was looking for work on problem 8.3, the solutions guide converted L x atm to joules by multiplying by 101.325J/L atm. Then when solving 8.9, the solutions guide used gas constants to convert to joules. Could i have just used the 101.325 again and if so why did the book use gas constants to convert the second problem?

Nivi Ahlawat 3I
Posts: 24
Joined: Fri Sep 25, 2015 3:00 am

### Re: Unit Conversions

Multiplying by 101.325J/L atm is basically the same thing as using the gas constants and converting to Joules.

Emma Schopp 1F
Posts: 2
Joined: Fri Sep 26, 2014 2:02 pm

### Re: Unit Conversions

For 8.9, yes you could have just used 101.325J/Lxatm instead of the gas constant.