What is true for the following reaction under standard condition?
C2H6 (g) → C2H4 (g) + H2 (g)
ΔH° is 137 kJ and ΔS° is 120 J/K
a) spontaneous at all temperatures
b) spontaneous only at high temperature
c) spontaneous only at low temperature
d) not spontaneous at all temperatures
e) cannot be determined
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