Question Detail

CHM 101 Chemical Thermodynamics Objective Question
Take CBT

Question

How does temperature affect spontaneity based on the signs of ΔH and ΔS?
Options
A ΔH positive, ΔS negative: spontaneous at all temperatures
B ΔH negative, ΔS positive: spontaneous at all temperatures
Correct Answer
C ΔH negative, ΔS negative: spontaneous only at high temperatures
D ΔH positive, ΔS positive: spontaneous only at low temperatures
Correct Answer

Option B is the correct answer.

Detailed Explanation

When ΔH is negative and ΔS is positive, ΔG = ΔH - TΔS is always negative, so the reaction is spontaneous at all temperatures.

Hint

The notes provide a table summarizing these relationships.

Question Info

Course: CHM 101
Topic: Chemical Thermodynamics
Type: Objective
Difficulty: Not specified
Question 960 of 1872
Previous Course Details Next