Multiple Choice
For the reaction
2C(s) + 2H2(g) C2H4(g)
Hr = +52.3 kJ.mol-1 and Sr = -53.07 J.K-1.mol-1 at 298 K.
The reverse reaction will be spontaneous at
A) temperatures below 985 K.
B) temperatures above 985 K.
C) temperatures below 1015 K.
D) all temperatures.
E) no temperatures.
Correct Answer:

Verified
Correct Answer:
Verified
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