# Entropy

Discussion in 'Homework Help' started by boks, Nov 14, 2009.

1. ### boks Thread Starter Active Member

Oct 10, 2008
218
0
For a system of molecules, T = 300 K, q = 1E30, and $\Delta U = 3740 J/mol$. What is the molar entropy if the molecules are distinguishable, and if they are indistinguishable?

Attempt:

For distinguishable: S/n = R ln q + U/T = 586.8 J/(K mol), which is correct

For indistinguishable: I've learnt that q' = q/N! in this case, but this number is practically zero. That would mean S/n = approaches infinity. The correct answer is 139.9 J/(K mol)

2. ### boks Thread Starter Active Member

Oct 10, 2008
218
0
Bump bump bump