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In Jafarey Equation, N is predicted with an error of

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in Distillation Design by (54.1k points)
In Jafarey Equation, N is predicted with an error of

(a) ± 2 to 3

(b) ± 1 to 2

(c) ± 6 to 7

(d) Can’t be specified

I have been asked this question in unit test.

I need to ask this question from The Jafarey, Dougles and Mcavoy Equation in chapter Column Process Design, Optimization and Shortcut Calculations of Distillation Design

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The correct answer is (a) ± 2 to 3

To explain: In Jafarey Equation N is predicted with an error of ± 2 to 3 stages, this is an ideal error with respect to human and conservative errors that occur.

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