value of R?

[Saachi_Kotia_4E]

what is the value of the constant R? in one of the homework problems, we used R=0.08206 in the n=PV/RT formula, but then we used R=8.314 in the w=-nRTlnV1/V2 formula. why is the value of R different?

[405161024]

R is specific to each gas, it is a constant that is given

[Jessica Chen 1F]

R is 0.08206 in the PV=nRT formula because its units are L atm K-1 mol-1 in that case.
R is 8.314 in the w=-nRTlnV1/V2 formula because its units are J K-1 mol-1 in that case.

[Amy Dinh 1A]

The values of constant R are different due to the different units shown in each equation.

[Vanadium Wang 4H]

Depending on the question, the gas constant, R = 8.314 J*K^-1*mol^-1 = 8.206*10^-2 L*atm*K^-1*mol^-1 = 8.314*10^-2 L*bar*K^-1*mol^-1 = 62.364 L*Torr*K^-1*mol^-1