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Solve the following equation 0.3089R2 – 0.4033R – 0.1242=0?(a) 2.45(b) 1.31(c) 8.9(d) 7.8This question was posed to me by my school principal while I was bunking the class.My query is from The Jafarey, Dougles and Mcavoy Equation in chapter Column Process Design, Optimization and Shortcut Calculations of Distillation Design

Answer» RIGHT option is (b) 1.31

The EXPLANATION is: USING quadratic formula f(x) =0.3089R2 – 0.4033R – 0.1242, and at f (1.31) = 0 we can CONCLUDE and THUS R=1.31.


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