The design equation for a plug flow reactor is ___________(a) V = \(\int_0^X\frac{dX}{-rA} \)(b) V = FA0 \(\int_0^X\frac{dX}{-rA} \)(c) \(\frac{V}{-rA} = \int_0^X\frac{dX}{FA0} \)(d) FA0 = -rA\(\int_0^X\frac{dX}{V} \)I had been asked this question at a job interview.Question is from Design Equations for Flow Reactors topic in portion Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing of Chemical Reaction Engineering

The design equation for a plug flow reactor is ___________(a) V = \(\i

1.	The design equation for a plug flow reactor is ___________(a) V = \(\int_0^X\frac{dX}{-rA} \)(b) V = FA0 \(\int_0^X\frac{dX}{-rA} \)(c) \(\frac{V}{-rA} = \int_0^X\frac{dX}{FA0} \)(d) FA0 = -rA\(\int_0^X\frac{dX}{V} \)I had been asked this question at a job interview.Question is from Design Equations for Flow Reactors topic in portion Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing of Chemical Reaction Engineering
Answer» The correct option is (b) V = FA0 \(\int_0^X\frac{dX}{-RA} \) EXPLANATION: To DETERMINE the volume of PFR required to obtain a certain conversion, the MOLE balance equation in terms of molar flowrate and conversion is written and INTEGRATED to get the above equation.

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The present CSTR is replaced by another CSTR of double the volume. A first order liquid phase reaction occurs in both the reactors. If the conversion achieved in the old reactor is 75%, what is the conversion achieved in the new reactor?(a) 0.857(b) 0.675(c) 0.765(d) 0.99I had been asked this question in homework.I need to ask this question from Conversion and Reactor Sizing topic in chapter Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing of Chemical Reaction Engineering
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For a first order reaction, if the rate constant is 1 min^-1 and the reaction time is 2 min, then the ratio of final to initial concentration is ____(a) 0.167(b) 0.135(c) 0.198(d) 0.764The question was asked in an online quiz.The origin of the question is Conversion and Reactor Sizing in portion Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing of Chemical Reaction Engineering
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The differential form of the plug flow reactor design equation is ______(a) FA0\(\frac{dX}{dV}\) = -rA(b) \(\frac{dX}{dV}\) = -rA(c) V\(\frac{dX}{dV}\) = -rA(d) \(\frac{dX}{dV}\) = -rA FA0The question was posed to me in an online interview.My question is taken from Design Equations for Flow Reactors in section Ideal Reactors for a Single Reaction, Conversion and Reactor Sizing of Chemical Reaction Engineering
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