Chemical Reaction Engineering Mcqs Online Exam Quiz

Chemical Reaction Engineering Mcqs GK Quiz. Question and Answers related to Chemical Reaction Engineering Mcqs. MCQ (Multiple Choice Questions with answers about Chemical Reaction Engineering Mcqs

Four MFR’s are operated in series the total space time is 5 minutes. If it is replaced by a single PFR, What will be the space time? First order reaction with rate constant 2 min-1, concentration reduces from 50 to 10 mol/m3.

Options

A : 0.805

B : 0.123

C : 0562

D : 0.439

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Find the size of the MFR in litres required to achieve 40% conversion for a flowrate of 100 lit/min.

Options

A : 10.68

B : 15.83

C : 3.45

D : 7.65

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Determine the space time of a PFR for the given reaction-concentration curve where the concentration is to be reduced from 1.6 to 0.4 mol/lit in minutes.

Options

A : 5

B : 9

C : 19

D : 32

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How should a PFR and MFR be connected to maximize production from a first order reaction?

Options

A : MFR followed by PFR

B : PFR followed by MFR

C : Any arrangement

D : MFR and PFR should not be connected

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The concentration profile shown is for __________

Options

A : MFR in series

B : MFR

C : PFR in series

D : PFR

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Graphical procedure for finding conversion in MFR’s of different sizes in series is called ______ method.

Options

A : Newton’s

B : Wheeler’s

C : Octaves

D : Jones

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Effect of flow type on reactor performance when the conversion is small.

Options

A : no effect

B : cannot be determined

C : very small

D : very large

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Best arrangement of reactors for a reaction whose rate-concentration curve that rises monotonically.

Options

A : Plug, Large MFR, Small MFR

B : Plug, Small MFR, Large MFR

C : Large MFR, Small MFR, Plug

D : Small MFR, Plug, Large MFR

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How should the two MFR’s of unequal size be connected in series to maximize production for a first order homogenous reaction?

Options

A : Smaller MFR followed by larger MFR

B : Larger MFR followed by smaller MFR

C : Any arrangement

D : MFR’s should not be connected in series

View Answer

For all positive reaction orders and any particular duty the MFR is always larger than the PFR.

Options

A : True

B : False

C :

D :

View Answer

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