Sample Problem 20.4
(continued)
DSorxn = S mSoproducts - S nSoreactants
DSorxn = [(3 mol)(151 J/mol.K) + (1 mol)(82.6 J/mol.K)] - [(4 mol)(143.1 J/mol.K)]
DSorxn = -36.8 J/K
DGorxn = DHorxn - TDSorxn
DGorxn = -144 kJ - (298 K)(-36.8 J/K)(kJ/103J)
DG0rxn = -133 kJ
The reaction is spontaneous.
| Previous slide | Next slide | Back to first slide | View graphic version |