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A refrigeration process with interstage cooling is operated with a refrigerant. The evaporator and condenser temperatures are 7C and 30C, respectively. The condenser is operated at 2.1MPa and the evaporator at 0.9MPa. The pressure of the flash chamber and the intermediate pressure between the compressors (C1&C2 ) is 1.4MPa. The compressors have an efficiency of 88%. The flow chart for such a cycle is depicted below. a. Sketch the corresponding TS and PH diagrams using the stream numbers as indicated in the flow chart below. b. Use the temperatures and pressures given above to label your diagrams. c. Indicate the state of Streams 1 through 9 (saturated, superheated, compressed, etc...)