As part of a refrigeration cycle, Freon 134a is adiabatically compressed from the saturated vapor at 60C

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As part of a refrigeration cycle, Freon 134a is adiabatically compressed from the saturated vapor at –60°C (note the negative sign on temperature) to 1017 kPa and 100°C.

(a) How much work is required in kJ/kg?

(b) Estimate the efficiency of the compressor.

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