Applying the First Law to Reacting SystemsA mixture of
Chapter 13, Problem 75P(choose chapter or problem)
A mixture of gaseous octane (\(\mathrm{C}_{8} \mathrm{H}_{18}\)) and 200% of theoretical air, initially at \(25^{\circ} \mathrm{C}\), 1 atm, reacts completely in a rigid vessel.
(a) If the vessel were well-insulated, determine the temperature, in \({ }^{\circ} \mathrm{C}\), and the pressure, in atm, of the combustion products.
(b) If the combustion products were cooled at constant volume to \(25^{\circ} \mathrm{C}\), determine the final pressure, in atm, and the heat transfer, in kJ per kmol of fuel.
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