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A certain mass of air occupying a volume of 4.3 m3 is at a pressure of 1,700 kPa(a). The air then expands at constant temperature to 25.8 m3. (Consider that the atmospheric pressure is 99 kPa) Find: a. The final pressure = kPa gauge Number b. The work done during expansion = kJ Number TThe initial volume of a mass of air is 6 me, and its pressure at 116 kPa abs. The air is compressed adiabatically to 2.52 m3. If the value of the adiabatic index for air is 1.4, find the final pressure (Consider that the barometric pressure is 101.2 kPa) pressure = kpag Number and the work done. Enter your number as a negative, indicating that the work is done on the gas. Work done = KJ Number