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Chemical Reaction Engineering

Chemical Reaction Engineering
When the density of the reaction mixture is constant in a chemical reaction, the ratio of the mean residence time to space time is

< 1
> 1
1

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Chemical Reaction Engineering
A chemical reaction is of zero order, when the reaction rate is (where, CA = concentration of reactant)

None of these
∝ CA
∝ 1/CA
Independent of temperature

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Chemical Reaction Engineering
The performance of a cascade of CSTR's can be improved by adding

More CSTR's in series
More CSTR's in parallel
A P.F. reactor in parallel
A P.F. reactor in series

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Chemical Reaction Engineering
Rate determining step in a reaction consisting of a number of steps in series is the __________ step.

Intermediate
Data insufficient; can't be predicted
Slowest
Fastest

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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.) ?

2
43832
43833
43864

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Chemical Reaction Engineering
The fractional volume change of the system for the isothermal gas phase reaction, A 3B , between no conversion and complete conversion is

2
0.5
3
1

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