posted by harry .
the standard free energies of formation of SO2(g) and SO3(g) are -300.4 and -370.4kJ mol-1 respectively. Calculate the value of the equilibrium constant at 25'C for the reaction 2SO2(g)+O2(g)==>2SO3(g)
dGrxn = (n*dGf products) - (n*dGf reactants), then
dGrxn = -RT*lnK
Solve for K.