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CHEMICAL REACTION ENGINEERING

Chemical Reaction Engineering
'Unreacted core model' represents the reaction involving

None of these
Combustion of coal particles
Roasting of sulphide ores
Manufacture of carbon disulphide from elements

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Chemical Reaction Engineering
If the pore diffusion controls in a catalytic reaction, the apparent activation energy Ea is equal to

ED/2
(E + ED)/2
(E + ED) where ED is activation due to diffusion
The intrinsic activation energy E

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Chemical Reaction Engineering
Half life period of a chemical reaction is

Half of the space time of a reaction
The time required to reduce the concentration of the reacting substance to half its initial value
None of these
Half of the residence time of a reaction

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Chemical Reaction Engineering
Fluid flow in a real packed bed can be approximated as __________ model.

Tank in series
Plug flow
Mixed flow
Dispersion

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Chemical Reaction Engineering
Participation of __________ is involved in the occurrence of a chemical reaction.

Neutrons
Protons
Electrons
None of these

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