123. Solving a chemistry problem

123. Solving a chemistry problem

In the initial state, there is 1.349 kg of liquid H2O and a negligible amount of vapor at 0°C. In the final state of the same system, all water is in the form of vapor at 110°C. Calculate the change in entropy in a reversible process at a constant external pressure of 1 atm, if the heat of vaporization of water is 40.67 kJ/mol, the average isobaric heat capacity of liquid water in the range from 0 to 100 °C is 75.6 J/(mol K), the same characteristic of steam in in the range from 100 to 110 °C is 37.4 J/(mol K).

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