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Refrigerant-134a is throttled from 900 kPa and 35C to 200 kPa. Heat is lost from the refrigerant in the amount of 0.8 kJ/kg to the

Refrigerant-134a is throttled from 900 kPa and 35°C to 200 kPa. Heat is lost from the refrigerant in the amount of 0.8 kJ/kg to the surroundings at 25°C.

Determine

(a) the exit temperature of the refrigerant

(b) the entropy generation during this process.

R-134a 900 kPa 200 kPa 35C

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