A series reaction: A k2 B C occurs over a solid catalyst. The temperature of the...

 

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A series reaction: A k2 B C occurs over a solid catalyst. The temperature of the bulk gas is 500 K and that of the catalyst surface is 525 K. The mass transfer coefficients for all of the species are equal to 1.25 m/s and the kinetic rate constants are k = 7.75 x 10 exp -10,000) () m/s k- 2.375 x 10" exp (-7541) m/s At a certain point in the reactor, the concentration of A in the bulk divided by the concentration of B in the bulk is equal to 2. The selectivity for this reaction is defined as the net rate of formation of B divided by the net rate of formation of C. Calculate the selectivity at the bulk conditions and the selectivity at the surface conditions. A series reaction: A k2 B C occurs over a solid catalyst. The temperature of the bulk gas is 500 K and that of the catalyst surface is 525 K. The mass transfer coefficients for all of the species are equal to 1.25 m/s and the kinetic rate constants are k = 7.75 x 10 exp -10,000) () m/s k- 2.375 x 10" exp (-7541) m/s At a certain point in the reactor, the concentration of A in the bulk divided by the concentration of B in the bulk is equal to 2. The selectivity for this reaction is defined as the net rate of formation of B divided by the net rate of formation of C. Calculate the selectivity at the bulk conditions and the selectivity at the surface conditions.