Chemical Reaction Engineering
A first order reaction is to be treated in a series of two mixed reactors. The total volume of the two reactors is minimum, when the reactors are

Of different sizes
Equal in size
None of these
Of such size that the ratio of their volumes is < 5

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Chemical Reaction Engineering
In the reversible reaction of the type, A + B ⇋ AB, in general

Both forward and backward reactions will be exothermic
The combination reaction will be exothermic, while the dissociation reaction will be endothermic
Neither of the reactions will be en-dothermic
The combination reaction will be endothermic, while the dissociation reaction will be exothermic

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Chemical Reaction Engineering
In Langmuir treatment of adsorption,

Extent of adsorption is more than one complete monomolecular layer on the surface
Whole surface of the catalyst is essentially uniform and the adsorbed molecule has no effect on the rate of adsorption per site
All the adsorption does not take place by the same mechanism
Whole surface of the catalyst does not have the same activity for adsorption and there is attraction between the adsorbed molecule

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Chemical Reaction Engineering
A batch reactor is suitable for

Achieving cent percent conversion of reactants into products
Liquid phase reactions
Obtaining uniform polymerisation products in highly exothermic reactions
Large scale gaseous phase reactions

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