Department of Chemical & Biochemical Engineering Rutgers, The State University of New Jersey 98 Brett Road Piscataway, NJ 0885454 14:155:201 Chemical Engineering Analysis IHomework Assignment 2 (due 9/18/08) 1.Draw and label the streams described below and derive expressions for the indicated quantities in terms of labeled variables. The following example is given as an illustration. Example.A continuous stream contains 60.0 mole% benzene and the balance toluene. Write expressions for the molar and mass flow rates of benzene ˙ n B(mol C6H6/s) and ˙ m B(kg C6H6/s), in terms of the total molar flow rate of the stream, ˙ n (mol/s). Solution: ˙ n B= (0.600 mol C6H6/mol)˙ n (mol/s) = 0.600˙ n (mol C6H6/s) ˙ m B= 0.600˙ n (mol C6H6/s)( 78.1 g C6H6/mol) = 46.9˙ n g C6H6/s (a)The feed to a batch process contains equimolar quantities of nitrogen and methane. Write an expression for the kilograms of nitrogen in terms of the total moles n(mol) of this mixture.
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