R in the equation


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R in the equation

Postby JennyCKim1J » Wed Jan 10, 2018 8:42 am

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

Naveed Zaman 1C
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Re: R in the equation

Postby Naveed Zaman 1C » Wed Jan 10, 2018 9:09 am

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
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Re: R in the equation

Postby Nhan Nguyen 2F » Wed Jan 10, 2018 9:34 am

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

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