# Problem: For the reaction A + B ⇌ C + D, ΔH°= +40 kJ and ΔS°= +50 J/K. Therefore, the reaction at standard conditions is A. spontaneous at temperatures less than 10 K. B. spontaneous at temperatures greater than 800 K. C. spontaneous only at temperatures between 10 K and 800 K. D. spontaneous at all temperatures. E. Nonspontaneous at all temperatures.

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For the reaction A + B ⇌ C + D, ΔH°= +40 kJ and ΔS°= +50 J/K. Therefore, the reaction at standard conditions is

A. spontaneous at temperatures less than 10 K.

B. spontaneous at temperatures greater than 800 K.

C. spontaneous only at temperatures between 10 K and 800 K.

D. spontaneous at all temperatures.

E. Nonspontaneous at all temperatures.

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 Gonzalez's class at UARK.