5. EXERCISES Activity 1: Solve Me Direction: Solve the given problems involving Gibbs free Energy & Chemical Equilibrium. Write your answer on a separate sheet of paper. 1. Given the AH° and AS, calculate the AG values for the following reactions and indicate whether the reaction is spontaneous at standard conditions. If a reaction is not spontaneous, state what may be done to make the reaction spontaneous. a. Cigraphite) + 2H2 b. CH3CH3 c. Na + 2H2 • CH0 Ha + C2H4) N2H4 AH° (kJ) -74.9 +137 AS (J/K) +186.3 +121 -331 +50.6

5. EXERCISES Activity 1: Solve Me Direction: Solve the given problems involving Gibbs free Energy & Chemical Equilibrium. Write your answer on a separate sheet of paper. 1. Given the AH° and AS, calculate the AG values for the following reactions and indicate whether the reaction is spontaneous at standard conditions. If a reaction is not spontaneous, state what may be done to make the reaction spontaneous. a. Cigraphite) + 2H2 b. CH3CH3 c. Na + 2H2 • CH0 Ha + C2H4) N2H4 AH° (kJ) -74.9 +137 AS (J/K) +186.3 +121 -331 +50.6

Chemistry

9th Edition

ISBN:9781133611097

Author:Steven S. Zumdahl

Publisher:Steven S. Zumdahl

Chapter17: Spontaneity, Entropy, And Free Energy

Section: Chapter Questions

Problem 7RQ: If you calculate a value for G for a reaction using the values of Gf in Appendix 4 and get a...

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