Mixed Reactors in Series: Calculate the Fraction Hydrolyzed in the Last Reactor

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Acetic acid is hydrolyzed in three stirred tank reactors operated in series. The feed flows to the first reactor (V = 1 lit) at a rate of 400 cm3/min. The second and third reactors have volumes of 2 and 1.5 liters respectively. The first order irreversible rate constant is 0.158 min-1. Calculate the fraction hydrolyzed in the effluent from the third reactor.