Page 1 of 1

Formula for reversible expansion

Posted: Sat Jan 20, 2018 2:53 pm
by Kellina Tran 2I
What does the R represent in the formula for reversible expansion?

Re: Formula for reversible expansion

Posted: Sat Jan 20, 2018 3:01 pm
by Adrienne Dang 1B
R is just the gas constant from the ideal gas law (PV=nRT), so it would be 8.314 J K^-1 mol^-1)

Re: Formula for reversible expansion

Posted: Sat Jan 20, 2018 4:55 pm
by Joanne Guan 1B
The ideal gas constant from PV = nRT is given as 0.08206 (L*atm)/(mol*K). For R to be more applicable to w = -nRT*ln(Vfinal/Vinitial), they rewrote it with the conversion 101.325 J = 1 L*atm to get 8.3145 J/(K*mol).