1. The problem statement, all variables and given/known data As a 1.00 mol sample of a monoatomic gas expands adiabatically the work done on it is -2.50x10^3J. The initial temperature and pressure of the gas are 500k and 3.60atm. Calculate a. The final temperature and b. The final pressure. 2. Relevant equations First law of thermodynamics Eint = Q + W 3. The attempt at a solution I was able to solve the first part of the question. Since it was an adiabatic process Q = 0 and then used Eint = nCv(Tb - Ta) to get the final temperature which is 300k. But i can't seem to get the final pressure. I have no idea on how to begin. Please any help will be very much appreciated.