Chapter 3, Problems #31

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The reaction A ? B is carried out in a laboratory reactor. According to a published article the concentration of A should vary with time as follows: C_{A} = C_{AO} exp (? kt) where C_{AO} is the initial concentration of A in the reactor and k is a constant.

(a) If C_{A} and C_{AO} are in lb-moles/ft^{3} and t is in minutes, what are the units of k?

(b) The following data are taken for CA (t); Verify the proposed rate law graphically (first determine what plot should yield a straight line), and calculate C_{AO} and k.

(c) Convert the formula with the calculated constants included to an expression for the morality of A in the reaction mixture in terms of t (seconds). Calculate the morality at t = 200s.?

3rd Edition

Authors: Richard M. Felder, Ronald W. Rousseau

ISBN: 978-0471720638