Chemical Reaction Engineering
An irreversible first order reaction is being carried out in a CSTR and PFR of same volume. The liquid flow rates are same. The relative conversion will

Be more in PFR than in CSTR
Depend on the temperature
Be more in CSTR than in PFR
Be same in both cases

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Chemical Reaction Engineering
A batch reactor is suitable for

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

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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
ΔHA + ΔHR
E + ΔHA
E

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Chemical Reaction Engineering
For the same residence time, which one will give the maximum conversion?

Two stirred tank (each of 2.5 litres) in series
Single stirred tank (v = 5 litres)
Single tubular flow reactor (v = 5 litres)
Stirred tank followed by tubular flow reactor (each of 2.5 litres)

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