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A piston cylinder device contains 5 kg of Refrigerant 134a at 800 kPa and 70 C....

A piston cylinder device contains 5 kg of Refrigerant 134a at 800 kPa and 70 C. The refrigerant is now cooled at constant pressure until it reaches a saturated vapor state. How much heat was lost in the process? Express your result in kJ and you may ignore the negative sign.

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