2. Methane gas is combusted with air, supplied in 25% excess. Calculate maximum attainable temperature in the combustion chamber. The reacting gas are supplied at 25°C. Air is taken to be 21% 0, and 79% N. The chemical reaction is, CH, + 20, - CO, + 2H,0, Set the reference temperature to be 298 K. Data are available at this temperatu and it is convenient since the reactants are supplied at this temperature. AH°,- 2AH°, (H,O) + AH°, (CO,) - AHº, (CH,) = 2 -241.827 + -393.505 - (- 74.873) - -802.286 kJ/mol Take the energy balance to be based on 1 mole of the reaction as written. Then AH°, - -802.286 k) = -802,286 J. The heat capacity data are tabulated below. Cp a+bX 10T+cX 10/ T + d x 10T 1/mol K CH 2.731 96.3 5.9 -26.836 29,431 4,19 -2.858 -0.385 CO, 22.226 56.2 0.105 -22.518 HO 33.568 -4.201 14.761 N2 29.192 -1.121 3.092 Calculate the T, (adiabatic temperature).

Explain what are the major raw materials used to produce propylene. For the most common raw material, calculate how much petroleum will be needed to produce that raw material on an annual basis.

How about d, e, and f?

Consider an methanol(1)/hexane(2) system. a. Calculate (show your work) the saturation pressure [mmHg] of hexane at 72.03635°C b. Calculate T [°C] and y, when P=651.792 mmHg and x=0.25 c. Calculate T [°C] and x1 when P=805.508 mmHg and y=0.450 d. Calculate P [mmHg] and yı when T=66°C and x-0.67465 e. Calculate P [mmHg] and x1 when T=61°C and y=0.13355