A very simple question, but I can't figure it out.
An ideal diatomic gas, with rotation but no oscillation, undergoes an adiabatic compression. Its initial pressure and volume are 1.20 atm and 0.200 m^3. Its final pressure is 3.60 atm. How much work is done by the gas?
Adiabatic, so Q=0 and ΔEint=W (because it is compression right?)
The Attempt at a Solution
Initial pressure = 1.22 * 10^5 pa
Final pressure = 3.66 * 10^ 5 Pa
V = 0.200 m^3
I tried to solve ΔU=5/2*(P2V2-P1V1) but I do not know V1..
Also U=-∫pdV right.. I am messing up, though its pretty simple I guess.
Can anybody help me out please?