1. The problem statement, all variables and given/known data Hello, I came across a problem where the polytropic index is not given but I've been given P1, P2, V1 and V2. P1V1 = P2V2 (130kPa)(0.007m3)n = (100kPa)(0.08637m3)n ----> n=1.249 2. Relevant equations PVn=constant I was thinking I would have to use log to figure out n maybe? 3. The attempt at a solution haven't been able to work it out backwards. Need your help please!