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 capacity in solid, liquid and gaseous states, heats of melting and evaporation are known *.

variant Substance A g, kg T1, K T2, K
1 Br2(bromine) 25 373 173

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