a large railroad has experimented with burning powdered coal in a gas turbine combustor. fifty percent excess air was introduced to the combustor at 1380 kpa and 127°c while the powdered coal was injected at 25°c. the combustion was adiabatic and at constant pressure. based on a coal from colorado that has an ultimate analysis (by mass) of 79.61% c, 4.66% h2, 4.76% o2, 1.83% n2, 0.52% s, and 8.62% ash (noncombustibles), write the balanced combustion equation. what is the estimated temperature of the combustion products? neglect the effect of the sulfur in the energy bala
