Combustible vapor-air mixtures are flammable over a limited range of concentrations. The
Chapter 5, Problem 5.114(choose chapter or problem)
Combustible vapor-air mixtures are flammable over a limited range of concentrations. The minimum volume % of vapor that gives a combustible mixture is called the lower flammable limit (LFL). Generally, the LFL is about half the stoichiometric mixture, the concentration required for complete combustion of the vapor in air. (a) If oxygen is 20.9 vol % of air, estimate the LFL for n-hexane, C6H14. (b) What volume (in mL) of n-hexane (d 5 0.660 g/cm3) is required to produce a flammable mixture of hexane in 1.000 m3 of air at STP?
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