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Chemical Reaction Engineering

Chemical Reaction Engineering
If the time required to change the concentration of reactant to half its original value is independent of the initial concentration, the order of reaction is

One
Zero
Two
Three

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Chemical Reaction Engineering
Autocatalytic reactions are best carried out in a

Plug flow reactor
Recycle reactor
CSTR in series
CSTR

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Chemical Reaction Engineering
__________ catalytic reaction is involved in the thermal cracking of gas oil.

Homogeneous non
Heterogeneous
Homogeneous
Heterogeneous non

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Chemical Reaction Engineering
__________ is the response curve for a step input signal from a reactor.

C-curve
None of these
I-curve
S-curve

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Chemical Reaction Engineering
If helium is introduced in a reactor containing O₂, SO₂ and SO₃ at equilibrium, so that total pressure increases while volume and temperature remains constant. In this case the dissociation of SO₃ (as per Le Chatlier principle)

Remains unaltered
Changes unpredictably
Decreases
Increases

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Chemical Reaction Engineering
The rate of reaction does not decrease appreciably as the reaction proceeds in case of __________ reactions.

Autothermal
Endothermic
Exothermic
Autocatalytic

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