Question: A gas-phase reaction is given: A + B -> C. In here, the reaction order and rate constant are not known. In an isothermal PFR,

A gas-phase reaction is given: A + B -> C. In here, the reaction order and rate constant are not known. In an isothermal PFR, the feed is composed of 80% A and 20% inert. The reaction needs a space time of 2 minutes for an 80% conversion. Determine the mean residence time of the fluid found in the reactor. (Hint: the answer is between 0.80 minutes and 1.2 minutes)

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