# Problem: For the reaction 2 SO3(g) → 2 SO2(g) + O2(g) ∆H◦r = +198 kJ·mol−1 at 298 K. Which statement is true for this reaction? 1. The reaction will not be spontaneous at any temperature. 2. The reaction will not be spontaneous at high temperatures. 3. ∆G◦r will be negative at high temperatures.  4. ∆G◦r will be positive at high temperatures. 5. The reaction is driven by the enthalpy.

94% (3 ratings)
###### Problem Details

For the reaction

2 SO3(g) → 2 SO2(g) + O2(g)

∆Hr = +198 kJ·mol−1 at 298 K. Which statement is true for this reaction?

1. The reaction will not be spontaneous at any temperature.

2. The reaction will not be spontaneous at high temperatures.

3. ∆Gr will be negative at high temperatures.

4. ∆Gr will be positive at high temperatures.

5. The reaction is driven by the enthalpy.

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.

What is the difficulty of this problem?

Our tutors rated the difficulty ofFor the reaction 2 SO3(g) → 2 SO2(g) + O2(g) ∆H◦r = +198 k...as medium difficulty.

How long does this problem take to solve?

Our expert Chemistry tutor, Dasha took 4 minutes and 4 seconds to solve this problem. You can follow their steps in the video explanation above.

What professor is this problem relevant for?

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