Calculate the standardfree energy change for the reaction, H_(2)(g) + I_(2)(g) rarr 2HI(g), DeltaH^(@) = + 51.9 kJ Given that the standard entropies (S^(@)) of H_(2), I_(2) and HI are 130.6, 116.7 and 206.3 J K^(-1) mol^(-1) respectively.Predict whether the reaction is feasibleat the standard state or not.

Calculate the standardfree energy change for the reaction, H_(2)(g) +

1.	Calculate the standardfree energy change for the reaction, H_(2)(g) + I_(2)(g) rarr 2HI(g), DeltaH^(@) = + 51.9 kJ Given that the standard entropies (S^(@)) of H_(2), I_(2) and HI are 130.6, 116.7 and 206.3 J K^(-1) mol^(-1) respectively.Predict whether the reaction is feasibleat the standard state or not.
Answer» Solution :`Delta_(R)S^(@)= 2xxS_((HI))^(@) - [ S_((H_(2)))^(@) +S_((I_(2)))^(@)]= 2 xx 206.3 - ( 130.6+ 116.7) = 165.3 J mol^(-1)` `Delta_(r)G^(@) = Delta_(r)H^(@) - T Delta_(r)S^(@) = 51900 - 298 xx 165.3 = 2640.6 J mol^(-1)`