95. Solving a chemistry problem

95. Solving a chemistry problem

Calculate the change in entropy during heating (cooling) at constant pressure in the temperature range from T1 to T2 g kg of substance A, if its melting and boiling points, heat capacities in the solid, liquid and gaseous state, melting and evaporation heats are known. The average heat capacities of substances in all states of aggregation, the heats of fusion and evaporation can be found in the chemist´s reference book, T.1.
Variant number Substance А g, kg T1,K T2,K
18 C7H9N, p-methylaniline 40 523 303

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