Answer:
- 21.3 kJ
Explanation:
For the favorable reaction, ÎGâ = + 9.2 kJ (ÎG > 0 for unfavorable reaction)
For the favorable reaction, ÎGâ = - 30.5 kJ (ÎG < 0 for favorable reaction)
For the overall reaction, ÎG = ÎGâ + ÎGâ = + 9.2 kJ + (- 30.5 kJ)
ÎG = + 9.2 kJ - 30.5 kJ = - 21.3 kJ