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. AH° (kJ) AS° (J/K) a. Cgraphite) + 2H2@ b. CH3CH3 c. N2 + 2H2g) CH4) H2 -74.9 +186.3 +121 + C2H4g) N2H4 +137 +50.6 -331

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Chapter1: Chemical Foundations
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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.
AS° (J/K)
AH° (kJ)
-74.9
a. Cigraphite) + 2H2)
b. CH¿CH3g)
c. N2 + 2H2@)
CH4g)
H2 + C2H4(
N2H40
+186.3
+137
+121
+50.6
-331
Transcribed Image Text: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. AS° (J/K) AH° (kJ) -74.9 a. Cigraphite) + 2H2) b. CH¿CH3g) c. N2 + 2H2@) CH4g) H2 + C2H4( N2H40 +186.3 +137 +121 +50.6 -331
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