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Chemical Reaction Engineering

Chemical Reaction Engineering
The vessel dispersion number (D/μL) for plug flow is

∞
750
500

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Chemical Reaction Engineering
The dispersion number of perfect mixed flow is

< 2100
∞
> 150

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Chemical Reaction Engineering
The following gas phase reactions are carried out isothermally in a CSTR.A → 2R ; r₁ = K₁pA ;K₁ = 20mole/(sec.m³ bar)A → 3S ; r₂ = K₂ pA ;K₂ = 40mole/ (sec.m³ .bar)What is the maximum possible value of FR(mole/sec.) ?

43832
43864
2
43833

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Chemical Reaction Engineering
The importance of diffusion in a catalyst are increased by

Small pore diameter
All of these
An active surface of the catalyst
Large catalyst particle size

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Chemical Reaction Engineering
The exit age distribution curve E(t) for an ideal CSTR with the average residence time, τ, is given by

1 - e-t/τ
1 - (e-t/τ/T)
E-t/τ
E-t/τ/T

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Chemical Reaction Engineering
A catalyst in a chemical reaction

Alters the reaction mechanism
Increases the frequency of collisions of reacting species
Decreases the activation energy
All of these

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