1kg of air at 20oC is contained in a cylinder at a pressure of 50 bar. A piston allows the air to expand to 2 bar. Calculate the work done by the piston if the expansion is:
i. isothermal,
ii. adiabatic.
iii. Sketch the two processes on a sketch of the P-V diagram.
iv. What assumptions are you making about the air?
Show all working clearly and give answers to a suitable degree of accuracy. Show all your working clearly and give your answers to a suitable degree of accuracy.
1kg of air at 20oC is contained in a cylinder at a pressure of 50 bar....
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