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

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Chemical Reaction Engineering
The rate expression for a heterogenous catalytic reaction is given by, - rA = K.KA PA(1 + KA.PA + Kr.PR), where K is surface reaction rate constant and KA and KR are absorption equilibrium constants of A and R respectively. If KR PR >> (1 + KA PA), the apparent activation energy EA is equal to (given E is the activation energy for the reaction and ΔHR and ΔHA are the activation energies of adsorption of R and A)

E + ΔHA - ΔHR
E + ΔHA
ΔHA + ΔHR
E

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Chemical Reaction Engineering
A first order irreversible reaction, A → B is carried out separately in a constant volume as well as in a variable volume reactor for a particular period. It signifies that __________ in the two reactors.

Conversion in both will be the same but concentrations will be different
Both the conversion as well as concentrations will be different
Both conversion as well as concentration are same
None of these

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