Question $1$

A first order reaction $A3B$ is taking place in a PBR and the intrinsic rate constant $(k^{\text{'}})$ is $\frac{0\mathrm{.}8l}{kg\text{c}\text{a}\text{t}\text{.}s}.$ A conversion of $75\%$ is desired. Feed at $4mo\frac{l}{s}$ containing $40\%$A and $60\%$ inerts enters the reactor at $127C$ and $5$ atm. Internal diffusion is ignored in this reactor design. If the pressure and temperature stay constant, what weight of catalyst was used to meet the $75\%$ conversion?