5. (a) The standard enthalpy of formation of ethyl ethanoate at 298 K is – 480 kJ mol-1 and the standard entropy of ethyl ethanoate at 298 K is + 259 J mol-1 K-1. Use these values and information from Section 12 of the IB data booklet to determine a value for Kc for the esterification reaction between ethanoic acid and ethanol at 298 K.
(b) Compare your answer to the literature value of 4 at 298 K and suggest one reason which may contribute to the fact that there is such a considerable difference.
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