The equations used are the same as those found in the Type 4 Home Problem solution. The only difference is that we now make k_R and K_c temperature dependent. The equations and knowns can be plugged into POLYM ATH and the numbers varied.

Varying k_c - graphs

Changing the value of k_c changes the rate at which B passes through the membrane. When it is small, little B passes through the membrane so the reaction is not driven to the right. The flowrate of B stays roughly the same as C.

When k_c is large, B can pass easily through the membrane, driving the reaction to the right. The flow rate of B takes a large dive as the concentration of B becomes high enough for B to start passing rapidly through the membrane.

Varying Temperature - graphs

Changing the temperature affects the reaction rate constant and the equilibrium constant. At low temperatures the reaction progresses very slowly and little product is formed. When the temperature is high the reaction progresses very quickly and the rea ction is essentially over at a short distance into the reactor.

Varying Flowrate - graphs

Changing the flowrate changes the rate at which the materials travel through the reactor. When the flowrate is small, the reactants travel slowly through the reactor and have plenty of time to react. As the flow rate increases the materials pass quickly through the reactor and do not have as much time for the reaction to progress.

Other than the variables we have already changed, the problem could also ask to vary groups such as k_c and K_C or ratios such as k_R/k_c.

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