Dodecane is burned at constant pressure with 120% excess air. What is the actual air fuel ratio for this process? (A) 55 (B) 22 Ⓒ44 (D) 33

Example 2: Consider constant pressure complete combustion of stoichiometric liquid octane-air and octane air with 10% excess air mixture initially at 298K and 1 atm. Compare the adiabatic flame temperature vlaues.

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9. Adiabatic Flame Temperature is achieved when (a) the combustion heat is the maximum (c) the combustion heat is the minimum (b) there is no loss in the heat to the surroundings (d) all products are at the same temperature has the most affinity to water to form sulfuric acid. (b) SO₂ (d) SO 10. Among all sulfur compounds, (a) SO3 (c) SO4² 11. When comparing the performance of SI engines, the (a) Indicated -efficiency is used as the measure. (b) Thermal (d) volumetric (c) mechanical 12. For a complete combustion, the reaction time should be longer than the physical time. (a) True (b) False