work done in adiabatic compression

0.15m3 of air, initially at a pressure of 100kN/m2 and temperature of 20°C iscompressed to a pressure of 1.5 MN/m2 according to the law p.V1.2=C.Find:i) The work done during compression. Is the work done on or by the gas?

Use Cantera to determine the specific work required to adiabatically and reversibly compress air at 1 atm, 25 degrees Celsius to 200 bar absolute:

explain adiabatic process

0.15M3 of air is compressed from a pressure of 100kN/M2and a temperature of 20°C to apressure of 1.5MN/M2 according to the law PV1.2=CSketch this on a PV diagram (3 marks)Findi) The work done during compression.Is the work done by or on the gas? (10 marks)ii) The mass of the gas in the cylinder? (5 marks)iii) The change in internal energy (10 marks)iv) The heat transferred during compressionIs this heat supplied or rejected? (5 marks)cv = 7180 J/kgK and R=2870 J/kgK

Consider an ideal gas that occupies 2 L at 1 bar. The gas is compressed isothermallyto 0.5 L at a constant pressure of 4 bar. This is followed by another isothermalcompression to 0.25 L at a constant pressure of 8 bar. Calculate the work involved inthis two-step compression. Calculate and compare the work if the same gas wascompressed 2 L to 0.25 L in a reversible, isothermal manner.