#28

greenspun.com : LUSENET : UR General Chemistry : One Thread

While you're at it ... could you explain how to do part a of 28? thanks.

-- Anonymous, March 01, 2000

Answers

dS=n*R*ln(V2/V1)= Sfinal - Sintial

Sintial = n*S = (0.1mol)*(126J/Kmol) = 12.6J/K

V1 = (n*R*T)/P1 = ((0.1mol)*(0.08206Latm/Kmol)*(298K))/1atm = 2.45L

dS= nRln(V2/V1) = (0.1mol)*(8.3145j/Kmol)*ln(5L/2.45L)= 0.593J/K

dS= Sfinal - Sintial

Sfinal = Sintial + dS = 12.6J/K + 0.593J/K = 13.2 J/K

-- Anonymous, March 01, 2000


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