An engine running on an Otto cycle has a maximum temperate of T3 = 3,606 K and a temperature at the end of the compression stage T2 =703 K. If the pressure P2 at the end of the isentropic compression stage is 16.90 bar what is pressure at the end of the combustion process? You may assume the ratio of specific heats (y) is 1.4. The units of your answer should be in "bars" and accurate to 3 significant figures (eg XX.X)