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Question

What is the change in entropy (ΔSvap) for the vaporization of ethanol (VHvap = 38.6 kJ•mol^-1) at its standard boiling temperature (78.4°C)? a) 0.110 J•mol-1•K-1 b) 0.492 J•mol-1•K-1 c) 110 J•mol^-1•K^-1 d) 492 J•mol^-1•K^-1