Example 4.9. Rxn.: AB has a fractional completion (or a fractional conversion) of species A at any instant of time as shown in the following Figure: 0.80 0.70 0.60 0.30 Focool completion A 0.40 30 0.20 0.10 0.00 100 200 400 300 600 300 Time (min) FDE 201-LECTURE NOTES-71 An engineer considers that it is too long to wait until this reaction reaches the completion. He/She then decides to take a reactant (i.e. species A) off a reactor at the time of 200 min. If 50 kg-mol of species A is fed into the reactor, how many kg-mol of B is to be produced at t = 200 min? how many kg-mol of unreacted A remain in the reactor