Question

Consider the oxidation of NO to NO2 :
NO(g)+12O2(g)→NO2(g)

Reactant or product	ΔH∘f(kJ/mol)	S∘(J/mol⋠K)
NO	91.3	210.8
O2	0	205.2
NO2	33.2	240.1

Part A

Calculate ΔG∘rxn at 25∘C.

Express your answer with the appropriate units.

Part B

Determine whether the reaction is spontaneous at standard conditions.