1. The problem statement, all variables and given/known data A fixed mass of gas at a constant pressure of 1 x 105 N/m2 (pascal) expands to twice its volume at constant temperature of 27°C. The volume is then kept constant, and the gas is heated to 87°C. Calculate the final gas pressure. 2. Relevant equations I think this is the equation PV/nT=R that I need for this question. 3. The attempt at a solution I am clueless to be honest. I am only given pressure and temperature to work this out. Can anyone please help me?