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OldExamsNew

# OldExamsNew - Selected 1C problems from old exams(The...

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Problem 2 For the reaction N 2 O 4 (g) 2NO 2 (g), " H 298 0 = 57.2kJ/mol, " S 298 0 = 176J/(mol K), Determine the equilibrium constant for this reaction at 325K. Solution: Assuming that " H 298 0 and " S 298 0 are temperature-independent, " G 325 0 # " H 298 0 \$ T " S 298 0 = (57.2 kJ/mol) \$ (325 K)(176 J/mol K)(10 \$ 3 kJ/J) = 0 kJ/mol Thus, using " G 0 = # RT ln K eq , we find that lnK eq = 0, and K eq =1.
Problem 3 For the reaction: 2NO(g) + O 2 (g)

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