Chapter 1 Self Test

Batch Reactor Times

Calculate the time to reduce the number of moles by a factor of 10 () in a batch reactor for the above reactionwith

-r_A = kC_A,  when k = 0.046 min^-1

Hint 1: Mole Balance

Hint 2: Rate Law

Full Solution

Hint 1

Well mixed batch reactor

In - Out + Generation = Accumulation

Back to Problem

Hint 2

Boundary Conditions: t = 0, N_A = N_Ao and t = t, N_A = N_A

Back to Problem

Calculate the time to reduce the number of moles by a factor of 10 in a batch reactor for the reaction with

-r_A = kC_A,  when k = 0.046 min^-1

Solution

Mole balance:

In - Out + Generation = Accumulation

Rate Law:

Boundary Conditions: t = 0, N_A = N_Ao and t = t, N_A = N_A

 

Solve:

Therefore, t = 50 minutes

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