1. The problem statement, all variables and given/known data An ideal monatomic gas is held initially at a pressure of 1 atmosphere in a volume of 10L. It is compressed to 4L in an adiabatic process. There are 0.8 moles. Find the final pressure of the gas. gamma = 1.667 2. Relevant equations PiVi^gamma = PfVf^gamma 3. The attempt at a solution I pretty much know what I'm doing, except I'm not sure what the formula means! Does it mean (PiVi)^gamma, or (Pi).(Vi^gamma?) I always assumed it was the second, but I'm doubting it now. I got a huge answer (10,190 x 10^5 Pascals) and I'm not sure if it's reasonable. Thank you!