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The vapour pressure of toluene is 59.1 torr at 313.75 K and 298.7 torr at 353.15 K. Calculate, the molar heat of vaporisation.

(a) 37888 J mol-1

(b) 27188 J mol-1

(c)  12834 J mol-1

(d) 571328 J mol-1