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Chemical Reaction Engineering

Chemical Reaction Engineering
A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

More than
Equal to or more than
Equal to
Less than

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Chemical Reaction Engineering
If 'n' is the order of reaction, then unit of rate constant is

(time)n - 1 (concentration)
1/(time)(concentration)n - 1
None of these
(time)-1 (concentration)n - 1

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Chemical Reaction Engineering
An endothermic second order reaction is carried out in an adiabatic plug flow reactor. The rate of heat generation is

Maximum at the exit of the reactor
Maximum at the centre of the reactor
Constant throughout the reactor
Maximum at the inlet of the reactor

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Chemical Reaction Engineering
What is the dispersion number for a plug flow reactor?

?
-1
1

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Chemical Reaction Engineering
The rate of a gas phase reaction is given by K . CA . CB. If the volume of the reaction vessel is reduced to l/4th of its initial volume, then the reaction rate compared to the original rate will be __________ times.

4
16
8
2

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Chemical Reaction Engineering
For an ideal mixed flow reactor (CSTR), the exit age distribution E(t) is given by

A dirac delta function
None of these
A step function
A ramp function

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