Calculate the entropy change of methanol

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Reference no: EM131155996

Problem 4.6:

One mol of methanol vapor is cooled under constant pressure in a closed system by removing 25000 J of heat. Initially, the system is at 2 bar, 200 °C.

a) Determine the final temperature.

b) Calculate the entropy change of methanol.

Additional data: boiling point of methanol at 2 bar: 83 °C; heat capacity of vapor: 60 J/mol K; heat capacity of liquid: 80 J/mol K; heat of vaporization at 2 bar: 36740 J/mol.

Problem 4.7:

Calculate the entropy of toluene in the following states:

a) 10 bar, 300 °C

b) Vapor-liquid mixture at 10 bar with quality 25%.

c) 10 bar, 20 °C.

d) 15 bar, 20 °C.

The following data are available:

Reference no: EM131155996

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