Kp for 3/2 O2(g) → O3(g) at 298 K is 2.47 x 10^-29. ∆rG° for this change is about:
A-163 kJ/mol
B-1.63 kJ/mol
C+16.3 kJ/mol
D+163 kJ/mol
Answer & Solution
Correct answer: D. +163 kJ/mol
The tiny Kp gives ∆rG° = -2.303RT log Kp = +163000 J/mol, a large positive value.
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