Acetic acid
CH3COOH can form a dimer
(CH3COOH)2 in the gas phase. The dimer is held together by two H-bonds with a total strength of
66.5kJ per mol of the dimer.
If at 25oC, the equilibrium constant for the dimerization is 1.3×103. Calculate ΔSo for the reaction:
2CH3COOH(g)⇌(CH3COOH)2(g)