Problem: A reaction for which ΔH° and ΔS° are both negative, is a. Nonspontaneous at low temperatures and spontaneous at high temperaturesb. Nonspontaneous at high temperatures and spontaneous at low temperaturesc. Non-spontaneous at all temperaturesd. Spontaneous at all temperaturese. Spontaneous at room temperature

FREE Expert Solution

We’re being asked to determine what occurs when we have negative ΔH and ΔS

Recall that when ΔH and ΔS are given, we can determine the spontaneity of the reaction based on their signs. We can use the Punnett square shown below:

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Problem Details

A reaction for which ΔH° and ΔS° are both negative, is 

a. Nonspontaneous at low temperatures and spontaneous at high temperatures

b. Nonspontaneous at high temperatures and spontaneous at low temperatures

c. Non-spontaneous at all temperatures

d. Spontaneous at all temperatures

e. Spontaneous at room temperature

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