Question

2.) Calculate ΔG⁰ for a reaction where ΔH⁰ is equal to 36.2 kJ and ΔS⁰ is equal to 123 J/K at 298 K. Is this a spontaneous reaction?

Answer 1

ΔG⁰ = ΔH⁰ – TΔS⁰

ΔG⁰ = 36.2 kJ – (298 K x 123 J/K)

ΔG⁰ = -0.4 kJ

Therefore the reaction is spontaneous because ΔG⁰ is negative