Question

For a particular reversible reaction at temperature T, ΔH and ΔS both were found to be +ve. If T_e is the temperature at equilibrium, the reaction would be spontaneous when 

(a) T = T_e 

(b) T_e > T 

(c) T > T_e 

(d) T_e is 5 times T

Answer 1

Correct option (c)

Explanation:

According to Gibbs’ equation,

ΔG = ΔH – T'S

Since, ΔH and ΔS, both are +ve, for ΔG < 0, the value of T > T_e.