The reactionis carried out in a differential packed-bed reactor at different temperatures,...

The reaction

is carried out in a differential packed-bed reactor at different temperatures, flow rates, and particle sizes. The results shown in Figure 2 were obtained.

Figure 2  Reaction rates in a catalyst bed.

(a) What regions (i.e., conditions dp, T, FT0) are external mass transfer-limited?

(b) What regions are reaction-rate-limited?

(c) What region is internal-diffusion-controlled?

(d) What is the internal effectiveness factor at T = 400 K and dp = 0.8 cm?