1. A mixture of 1 kmol CO and 0.5 kmol O2 in a closed vessel, initially at 1 atm and 300 K, reacts to form an equilibrium mixture of CO2, CO, and O2 at 2500 K. Determine the final pressure, in atm.
2. Methane burns with 90% of theoretical air to form an equilibrium mixture of CO2, CO, H2O(g), H2, and N2 at 1000 K, 1 atm. Determine the composition of the equilibrium mixture, per kmol of mixture.
3. Octane (C8H18) burns with air to form an equilibrium mixture of CO2, H2, CO, H2O(g), and N2 at 1700 K, 1 atm. Determine the composition of the products, in kmol per kmol of fuel, for an equivalence ratio of 1.2.
4. Acetylene gas (C2H2) at 25°C, 1 atm enters a reactor operating at steady state and burns with 40% excess air entering at 25°C, 1 atm, 80% relative humidity. An equilibrium mixture of CO2, H2O, O2, NO, and N2 exits at 2200 K, 0.9 atm. Determine, per kmol of C2H2 entering, the composition of the exiting mixture.