But this is available for all of the species

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Unformatted text preview: of the species, including the impurities in the technical grade chlorine. (b) Take 100 mole of the product gas as a basis. Then use the mole fractions determined above to calculate the number of moles of reactant (C6H6 and Cl2) need to produce that number of moles of product. This would give the molar composition of the reactant stream. So Component C6H6 C6H5Cl C6H4Cl2 C6H3Cl3 Mole Frac. 0.732 0.250 0.0149 0.00242 Moles 73.2 25.0 1.49 0.242 Moles C6H6 73.2 25.0 1.49 0.242 Moles Cl2 0 25.0 2.98 0.726 So the reactant stream would have had to contain 73.2+25.0+1.49+0.242 = 100 mol C6H6 and 25.0+2.98+0.726 = 28.7 mol Cl2. If the basis is the formation of monochlorobenzene we need one mol of Cl2 per mol of benzene. Since there were 28.7 mol Cl2 the amount of benzene needed (stoichiometrically) is also 28.7 mol. So the percentage of benzene in excess is excess 100 28.7 100% 248% 28.7 The fractional conversion of C6H6 is conversion in out 100 73.2 0.268 in 100 To compute the fractional yiel...
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