A 10 m3 insulated rigid tank contains a mixture of 1 kmol of octane (liquid) and the

Question:

A 10 m3 insulated rigid tank contains a mixture of 1 kmol of octane (liquid) and the theoretical amount of air at 25oC. The contents are ignited and the mixture burns completely. Determine the final temperature (T2) and pressure (p2). Assume the products to be
(a) a perfect gas mixture with a cp of 1.005 kJ/kg K and
(b) an ideal gas mixture.