Air pump to fill rigid gas cylinder
Hi, I'm confused by this question and don't know where to start:

Do I use the ideal gas law pV= mRT and take it from there? A method would be useful.
Many thanks
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Hi, I'm confused by this question and don't know where to start:

Do I use the ideal gas law pV= mRT and take it from there? A method would be useful.
Many thanks
So I can find the masses of each from the ideal gas law, and then using the isentropic relationships pV^gamma, and TV^(gamma-1), I can find Pressure & Temp after first compression stroke. But what about Q4), after the expansion stroke, finding the Pressure & Temp, I think I use isentropic relationships again, but not sure what the P1 and V1 are now, any help much appreciated.
Thanks.