If τ is the average residence time and σ2 is the standard deviation – McqOptions

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1.	If τ is the average residence time and σ2 is the standard deviation, then the number of tanks necessary to model a real reactor as N ideal tanks in series is ____
A.	N = \(\frac{\tau^2}{σ^2} \)
B.	N = \(\frac{σ^2}{τ^2} \)
C.	N = σ2
D.	N = \(\frac{1}{τ^2} \)
Answer» B. N = \(\frac{σ^2}{τ^2} \)

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