## R in the equation

Volume: $\Delta S = nR\ln \frac{V_{2}}{V_{1}}$
Temperature: $\Delta S = nC\ln \frac{T_{2}}{T_{1}}$

JennyCKim1J
Posts: 51
Joined: Fri Sep 29, 2017 7:04 am

### R in the equation

In the equation w = -nRT * ln(Vfinal/Vinitial), what does R represent?

Naveed Zaman 1C
Posts: 62
Joined: Fri Sep 29, 2017 7:04 am
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### Re: R in the equation

R is just a constant that was derived to cancel out units to yield the unit of Joules for work. I believe the units are J/K-1•mol-1, which cancels out the units for n and T in the equation and leaves Joules.

Nhan Nguyen 2F
Posts: 52
Joined: Thu Jul 13, 2017 3:00 am
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### Re: R in the equation

R is the gas constant which is 8.3145 J/ K * mol or 0.08206 L * atm/ (k* mol) depending on the units the questions give you