Elementary Principles 84 - 4.53 a. C 6 H 6 + Cl 2 C 6 H 5...

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4- 43 4.53 a. CH C l CHC l HC l C H Cl Cl C H Cl HCl C H Cl Cl C H Cl HCl 66 2 65 2 64 2 2 63 3 +→ + + + Convert output wt% to mol%: Basis 100 g output species g Mol. Wt. mol mol % 65.0 78.11 0.832 73.2 l 32.0 112.56 0.284 25.0 l 2.5 147.01 0.017 1.5 l 0.5 181.46 0.003 0.3 total 1.136 Basis: 100 mol output n 1 (mol HCl(g)) n 4 (mol C H ) 6 n 3 (mol I) 6 n 2 (mol Cl ) 2 n 3 32.0 65.0 mo l C H 6 6 H Cl 6 5 0.5 2.5 6 4 6 3 2 3 4 unknowns -3 atomic balances -1 wt% Cl 2 in feed 0 D.F. b. C balance: () 1 6 6 73.2 25.0 1.5 0.3 n =+ + + = n 1 100 mol C H H balance: ()( ) ( ) ( ) ( ) 4 6 100 6 73.2 5 25.0 4 1.5 3 0.3 n =++ + + 4 28.9 mol HCl n ⇒= Cl balance: ( ) ( ) 2 2 28.9 25.0 2 1.5 3 0.3 n + 22 28.9 mol Cl n Theoretical C H ( ) 26 6 2 6 6 28.9 mol Cl 1 mol C H 1 mol Cl 28.9 mol C H == Excess C H : 100 28.9 28.9 100% 246% excess C H −× = Fractional Conversion: 100 73.2 100 0.268 mol C H react/mol fed −= Yield: (25.0 mol C H Cl) (28.9 mol C H Cl maximum)=0.865 28.9 mol Cl 70.91 g Cl 1 g gas Gas feed: 2091 g gas mole Cl
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This note was uploaded on 02/27/2012 for the course CHEMICAL E 312 taught by Professor Cheung during the Fall '11 term at The University of Akron.

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