The standard Gibbs energy of formation of HBr(g) at 298 K is -53.22 kJ/mol.
a) Calculate the standard free-energy change for the following reaction, ΔGrxn.
b) Is the reaction spontaneous at 298 K? Explain briefly.
c) Calculate the equilibrium constant at 298 K for the following reaction.
H2(g) + Br2(g) <-> 2 HBr(g)