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Chemical Reaction Engineering

Chemical Reaction Engineering
For the reaction, A + B → 2B + C,

rA = -rB
rA = 2rB
rA = rB/2
rA = rB

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Chemical Reaction Engineering
With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will

Remain same
Data in insufficient; can't be predicted
Increase
Decrease

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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

E-t/τ/T
1 - e-t/τ
1 - (e-t/τ/T)
E-t/τ

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Chemical Reaction Engineering
Rate of an autocatalytic chemical reaction is a function of

Pressure only
All of these
Temperature only
Composition only

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Chemical Reaction Engineering
Half life period of a first order irreversible reaction A → B is

Ln 2/k
K/2
Ln k/2
Ln 0.5/k

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Chemical Reaction Engineering
Most important characteristics of gas-liquid reactors are the

Both A and B
Liquid hold-up
Specific inter-facial area
None of these

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