The reaction of A B + C was carried out at 1 atm and 420 ^oC in a differential reactor and the following data were obtained. The feed is pure A.

t,min	0	50	100	150	200	300	400	500
A in the output flow (mol%)	96	96.8	97.41	97.9	98.31	98.89	99.26	99.52

1. Find (1) the concentration of A in the output flow in mol/L, (2) degree and constant of catalyst decay.
2. Considering the deactivation time, what type of reactor is suitable for this catalyst? Explain why