Freon-12 (CCl2 F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans. Calculate the number of molecules of Freon-12 in 5.56 mg of Freon-12. What is the mass of chlorine in 5.56 mg of Freon-12? | Numerade

SOLVED: A standard vapor-compression refrigeration system uses R 12 as the refrigerant. The R 12 leaves the evaporator at – 20C, and the condenser pressure is 1000 kPa. The flow rate is 20 kg/min. Determine (a) the tons of refrigeration; (b) the power required; (c) the COP.

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