A constant volume tank contains a mixture of 150 g of methane (CH4) gas and 750 g air at 25oC, 150 kPa. The contents of the tank are now ignited, and the methane gas burns completely. If the final temperature in the tank is 1100 K, determine
(a) The final pressure (p2) in the tank and
(b) The heat transfer (Q) during this process.