Chemical Reaction Engineering
Considering the endotheomic dissociation of CaCO₃ in a closed vessel (CaCO₃ ⇋ CaO + CO₂), the pressure of CO₂ increases, if

The temperature is increased
A catalyst is added
An inert gas is pumped keeping the temperature constant
None of these

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

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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)

ΔHA + ΔHR
E + ΔHA - ΔHR
E + ΔHA
E

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