The irreversible gas-phase reactionis carried out adiabatically over a packed bed of solid...

The irreversible gas-phase reaction

is carried out adiabatically over a packed bed of solid catalyst particles. The reaction is first order in the concentration of A on the catalyst surface:

The feed consists of 50% (mole) A and 50% inerts and enters the bed at a temperature of 300 K. The entering volumetric flow rate is 10 dm3/s (i.e., 10,000 cm3/s). The relationship between the Sherwood number and the Reynolds number is

As a first approximation, one may neglect pressure drop. The entering concentration of A is 1.0 M. Calculate the catalyst weight necessary to achieve 60% conversion of A for

(a) Isothermal operation.

(b) Adiabatic operation.

(c) What generalizations can you make after comparing parts(a) and(b)?

Additional information.