4. 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.
Variant number Substance А g, kg T1,K T2,K
8 C2H3ClO2 (chloroacetic acid) 15 423 313

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