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Chemical Reaction Engineering

Chemical Reaction Engineering
Holding time for flow reactors is __________ the space time, for constant fluid density

None of these
Double
Triple
Equal to

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Chemical Reaction Engineering
A first order reaction requires two unequal sized CSTR. Which of the following gives higher yield ?

Large reactor followed by smaller one
Smaller reactor followed by larger one
Data insufficient, can
Either of the arrangement A or B will give the same yield

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

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

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Chemical Reaction Engineering
The catalyst in a first order chemical reaction changes the

Heat of reaction
Heat of formation of the product
Equilibrium constant
Activation energy

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Chemical Reaction Engineering
For the reversible reaction A ⇋ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium?

0.253
0.637
0.152
0.338

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Chemical Reaction Engineering
A photochemical reaction is

Accompanied with emission of light
Initiated by light
Catalysed by light
All of these

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