Jet fuel occasionally contains trace amounts of organosulfur compounds such as…

CHEMISTRY · Multi-part · A Level · Chemistry · Amount of substance · Amount of substance

Problem

Jet fuel occasionally contains trace amounts of organosulfur compounds such as decane-1-thiol, C10H22S(l)C_{10}H_{22}S(l). When the fuel burns in an aircraft engine supplied with excess oxygen, the products are CO2(g)CO_2(g), H2O(g)H_2O(g), and SO2(g)SO_2(g). Environmental regulations limit the total mass of SO2SO_2 that a single trans-Atlantic flight may emit. A particular flight consumes 4.50×103 kg4.50\times10^{3}\,\text{kg} of pure decane-1-thiol during cruise. (a) Write the balanced chemical equation for the complete combustion of decane-1-thiol, including SO2(g)SO_2(g) as the sole sulfur-containing product. All products are gases. (b) Using your balanced equation from part (a), determine the moles of O2(g)O_2(g) required per mole of fuel burned. (c) Calculate the total mass of SO2(g)SO_2(g), in metric tons (1 ton=103 kg)(1\,\text{ton}=10^{3}\,\text{kg}), emitted during the flight described above. Report your answer to three significant figures. (d) Propose one chemical or engineering strategy that could be employed before or during flight to reduce the mass of SO2SO_2 emitted. Explain the underlying chemical principle that makes your strategy effective.

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