Practice Problem 8

Predict whether the following reaction is still spontaneous at 500°C:

N₂(g) + 3 H₂(g) 2 NH₃(g)

Assume that the values of  H^o and S° used in Practice Problem 7 are still valid at this temperature.

Answer

G^o = 61.4 kJ, the reaction is unfavorable at high temperatures.