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Problem 1 A piston-cylinder device holds 1m3 of R134a at 20C and 100kPa. Determine the amount of heat transfer required if the refrigerant is heated

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Problem 1 A piston-cylinder device holds 1m3 of R134a at 20C and 100kPa. Determine the amount of heat transfer required if the refrigerant is heated to 100C a) while the piston is locked in its original position, and b) while the piston is allowed to move freely maintaining the pressure at 100kPa

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