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