# Problem: 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.

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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.

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Spontaneous Reaction concept. You can view video lessons to learn Spontaneous Reaction. Or if you need more Spontaneous Reaction practice, you can also practice Spontaneous Reaction practice problems.

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