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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.

Equal to
More than
Equal to or more than
Less than

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Chemical Reaction Engineering
For the non-catalytic reaction of particles with surrounding fluid, the time needed to achieve the same fractional conversion for particles of different but unchanging sizes is proportional to the square of particle diameter, when the __________ is the controlling resistance.

Film diffusion
Diffusion through ash layer
Either A, B or C
Chemical reaction

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Chemical Reaction Engineering
The catalytic activity of enzymes is due to their capacity to lower the __________ energy.

Kinetic
None of these
Activation
Potential

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Chemical Reaction Engineering
In which of the following reactions, thee-quilibrium will shift to the right, if the total pressure is increased?

H₂ + I₂ ⇋ 2HI
N₂O₄ ⇋ 2 NO₂
N₂ + O₂ ⇋ 2NO
H₂ + Cl₂ ⇋ 2HCl

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Chemical Reaction Engineering
For a zero order reaction, the concentration of product increases with the

Decrease in total pressure
Increase of reaction time
Total pressure
Increase in initial concentration

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Chemical Reaction Engineering
Molecularity of an elementary reaction, P + Q → R + S is

3
1
2
4

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