Question Detail
Question
When ΔH is positive and ΔS is negative, what is the spontaneity?
Correct Answer
Option D is the correct answer.
Detailed Explanation
When ΔH is positive and ΔS is negative, ΔG = ΔH - TΔS is always positive because both terms are positive. Thus, the reaction is nonspontaneous at all temperatures.
Hint
The notes provide a table summarizing these relationships.