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1. 8.00 kg/s of air flows through a diffuser with an inlet diameter of 0.0350 m and a static pressure and temperature of 0.500 MPa and 22.0°C. The air exits through a diameter of 0.900 m at static conditions of 0.540 MPa and 25.0°C. Determine the diffuser's efficiency and pressure recovery coefficient.

2. A diffuser decelerates 15.0 kg/s of carbon dioxide from 200. m/s at 20.0°C and 0.800 MPa to 1.00 m/s at 30.0°C and 1.00 MPa. Determine the diffuser efficiency, pressure recovery coefficient, and the inlet and exit areas.

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