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Chemical Reaction Engineering

Chemical Reaction Engineering
In a reaction, the threshold energy is equal to (where, A = activation energy N = normal energy of reactants)

A+N
A-N
A
N

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Chemical Reaction Engineering
The dispersion number of perfect mixed flow is

< 2100
∞
> 150

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Chemical Reaction Engineering
The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is

0.425
Data insufficient to calculate
0.5
0.875

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Chemical Reaction Engineering
In case of calcination of limestone, CaCO₃ CaO + CO₂, the addition of more of CaO will result in __________ in the concentration of CO₂.

Increase
Decrease
Unpredictable from the data
No change

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Chemical Reaction Engineering
For an isothermal second order aqueous phase reaction, A → B, the ratio of the time required for 90% conversion to the time required for 45% conversion is

2
22
11
4

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Chemical Reaction Engineering
'Unreacted core model' represents the reaction involving

None of these
Combustion of coal particles
Roasting of sulphide ores
Manufacture of carbon disulphide from elements

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MORE MCQ ON Chemical Reaction Engineering

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