A. When 100kJ of work done on a closed system during a process, the total energy of the system increases by 55.0kJ. Calculate how much heat is either added or removed from the system?B. Refrigerant 12 (Freon 12) at 20 psia and 30oF is compressed to 140 psia and 150oF during a compression stroke. For a pound of this refrigerant calculate the work done during compression.
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