Q.1 A gascous mixture consisting of two moles of methane (CH) and one of propane (C:Hp) is mixed with 10% excess air at 25C, and burnt in a constant volume chamber. Determine the pressure at the combustion temperature of 2200 K given that 98.6% of the carbon oxidises completely, and using values of Kcoz = 168.27 atm and Kw20=874.98 atm 12 1/2