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CHM 101 Chemical Thermodynamics Objective Question
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Question

Is exothermicity always the key to spontaneity?
Options
A Only endothermic processes are spontaneous
B No, some spontaneous processes are endothermic, like ice melting above 0°C
Correct Answer
C Yes, all exothermic processes are spontaneous
D Exothermicity has no relationship to spontaneity
Correct Answer

Option B is the correct answer.

Detailed Explanation

Exothermicity is not always the key. Some spontaneous processes absorb energy (endothermic), for example, ice melting at T > 0°C is endothermic but still spontaneous.

Hint

The notes provide this counterexample.

Question Info

Course: CHM 101
Topic: Chemical Thermodynamics
Type: Objective
Difficulty: Not specified
Question 913 of 1872
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