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Chemical Reaction Engineering

Chemical Reaction Engineering
Kinetics of a catalytic reaction can be best studied on a/an __________ reactor.

Mixed
Integral (plug flow)
Either A, B and C
Differential (flow)

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Chemical Reaction Engineering
BET apparatus

Operates at very high pressure
Is made entirely of stainless steel
None of these
Measures the catalyst surface area directly

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Chemical Reaction Engineering
Overall rate of reaction in a heterogenous catalytic reaction depends upon the mass and energy transfer from the fluid to solid surface and its rate of reaction is usually __________ the concentration of catalyst, if it does not entail a chain mechanism.

Proportional to
Independent of
Inversely proportional to
Proportional to the square of

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Chemical Reaction Engineering
If the catalyst pore size is small in comparison with the mean free path, collisions with the pore wall controls the process'. The diffusivity under this condition is called 'Knudsen diffusivity', which is affected by the

Neither A nor B
Temperature
Both A & B
Pressure

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Chemical Reaction Engineering
According to the 'law of mass action', the rate of reaction is directly proportional to the

Nature of the reactants
Volume of the reaction vessel
Equilibrium constant
Molar concentration of the reactants

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Chemical Reaction Engineering
Vegetable oils are hydrogenated in a __________ reactor.

Homogeneous catalytic
Slurry
None of these
Plug flow

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