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:
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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