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A rigid tank contains 0.4 m3 of refrigerant-134a initially at 150 kPa and 30 percent quality. Heat is transferred to the refrigerant from a source

A rigid tank contains 0.4 m3 of refrigerant-134a initially at 150 kPa and 30 percent quality. Heat is transferred to the refrigerant from a source at 45 degrees C until the pressure rises to 320 kPa. 1. Determine the entropy change of the refrigerant 2. Determine the entropy change of the heat source 3. Determine the total entropy change for this process

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