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Chemical Reaction Engineering

Chemical Reaction Engineering
If the time required for half change is inversely proportional to the square of initial concentration and the velocity depends on the units in which the concentration term is expressed, then the order of reaction is

1
0
3
2

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Chemical Reaction Engineering
The rate constant of a reaction is a function of the

Time of reaction
Extent of reaction
Initial concentration of the reactants
Temperature of the system

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Chemical Reaction Engineering
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

D2
√d
D1.5
D

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Chemical Reaction Engineering
A catalyst in a chemical reaction

Decreases the activation energy
All of these
Increases the frequency of collisions of reacting species
Alters the reaction mechanism

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Chemical Reaction Engineering
In an exothermic reaction, the energy of the reacting substances as compared to that of products is

Same
More
Less
Either A or B, depends on order of reaction

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Chemical Reaction Engineering
In chamber process of sulphuric acid manufacture in industry, the gas phase oxidation of SO₂ to SO₃ is accomplished by a __________ reaction.

Non-catalytic heterogeneous
Catalytic heterogeneous
Non-catalytic homogeneous
Catalytic homogenous

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