Problem: What can be said about an Endothermic reaction with a negative entropy change?The reaction isa. spontaneous at all temperatures.b. spontaneous at high temperatures.c. spontaneous at low temperatures.d. spontaneous in the reverse direction at all temperatures.e. nonspontaneous in either direction at all temperatures.

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FREE Expert Solution
FREE Expert Solution

We’re being asked to identify which statement is correct for a reaction given the sign of its ΔH and  ΔS.


The statements given describe the spontaneity of the reaction at different temperatures

Recall that we can determine the spontaneity of the reaction based on the signs of ΔH and ΔS

We can use the Punnett square shown below:

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Problem Details

What can be said about an Endothermic reaction with a negative entropy change?

The reaction is
a. spontaneous at all temperatures.
b. spontaneous at high temperatures.
c. spontaneous at low temperatures.
d. spontaneous in the reverse direction at all temperatures.
e. nonspontaneous in either direction at all temperatures.

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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 West's class at UGA.