b) A packed bed reactor converts A to R by a first-order catalytic reaction. With 9-mm pellets the reactor operates in the strong pore diffusion resistance regime and gives 63.2% conversion. If these pellets were replaced by 18-mm pellets (to reduce pressure drop) to treat Im/s of pure feed gas at 336C and 1.1 atm. Experimental data for the 9-mm pellets are given below. 2 m3 A R k' = m3 reactor.s What size of reactor will be required when using the 18-mm pellets to maintain the same conversion as 9-mm pellets