🤓 Based on our data, we think this question is relevant for Professor Daoudi's class at UCF.

Solution: For the reaction 2 SO3(g) → 2 SO2(g) + O2(g) ∆H◦r = +198 kJ · mol−1 and ∆S◦r = 190 J · K−1 · mol−1 at 298 K. The forward reaction will be spontaneous at 1. temperatures above 1042 K.  2. temperatures below 1042 K. 3. all temperatures. 4. no temperature. 5. temperatures above 1315 K.

Problem

For the reaction

2 SO3(g) → 2 SO2(g) + O2(g)

∆Hr = +198 kJ · mol−1 and ∆Sr = 190 J · K−1 · mol−1 at 298 K. The forward reaction will be spontaneous at

1. temperatures above 1042 K. 

2. temperatures below 1042 K.

3. all temperatures.

4. no temperature.

5. temperatures above 1315 K.