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Chemical Reaction Engineering

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

11
4
22
2

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Chemical Reaction Engineering
A second order reaction of the form A + B → C is called a pseudo-first order reaction, when

CB0 > CA0
CA0 > CB0
CB0 ≥ CB0
CA0 = CB0

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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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Chemical Reaction Engineering
Half-life period for a first order reaction is __________ the initial concentration of the reactant.

Independent of
Directly proportional to
Inversely proportional to
None of these

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Chemical Reaction Engineering
In a reversible chemical reaction having two reactants in equilibrium, if the concentration of the reactants are doubled, then the equilibrium constant will

Also be doubled
Be halved
Remain the same
Become one fourth

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Chemical Reaction Engineering
The excess energy of the reactants required to dissociate into products is known as the __________ energy.

Activation
Binding
Threshold
Thermal

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