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Answer to Question #59710 in Material Science Engineering for chris

Question #59710
TASK 3
a) A single cylinder petrol engine has a volume compression ratio of 8:1, takes in a mixture of fuel and air at a temperature of 250°C and its pressure is 101 kPa. If the pressure at the end of the compression stroke is 1.5 MPa what will be its final temperature?
b) A compressed air storage cylinder has a volume of 0.5 m3 and contains air at an absolute pressure of 1.8 MPa and temperature 20°C. A quantity of the air is released during which the temperature of the remaining air falls to 15°C and the pressure to 1.5 MPa. Calculate the mass of the air released. The characteristic gas constant for air is 287 Jkg−1K−1.
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