Chapter 17, Problem 35E

Consider the reaction.

$\text{2NO}\left(g\right)+{\text{O}}_{\text{2}}\left(g\right)\to {\text{2NO}}_{\text{2}}\left(g\right)$

Estimate $\Delta G°$ for this reaction at each temperature and predict whether or not the reaction is spontaneous. (Assume that $\Delta H°$ and $\Delta S°$ so not change too much within the given temperature range.)
a. 298 K
b. 715 K
c. 855 K