Notifications
Clear all
0
01/10/2021 11:05 am
Topic starter
A reaction is spontaneous at low temperature but non-spontaneous at high temperature. Which of the following is true for the reaction?
(a) ΔH > 0, ΔS > 0
(b) ΔH < 0, ΔS > 0
(c) ΔH > 0, ΔS = 0
(d) ΔH < 0, ΔS < 0
1 Answer
0
01/10/2021 11:06 am
Correct answer: (d) ΔH < 0, ΔS < 0
Explanation:
We know that ΔG = ΔH – TΔS
When ΔH < 0 and ΔS < 0 then ΔG will be negative at low temperatures (positive at high temperature) and the reaction will be spontaneous.