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## Homework Statement

I have a bicycle pump where I need to calculate the pressure in a certain volume. No heat is lost during compression so this is a isentropic system

initial volume is 0.3L

final volume is 0.0195

Gas is air

n=k

## Homework Equations

I don't know, that's the problem. I recognise this as a fairly simple question but I just don't know

## The Attempt at a Solution

non