Chemical Reaction Engineering
Catalyst is a substance, which __________ chemical reaction.

Decreases the speed of a
Alters the value of equilibrium constant in a reversible
Increases the speed of a
Can either increase or decrease the speed of a

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Chemical Reaction Engineering
The experimentally determined overall order of the reaction, A + B → C + D, is two. Then the

Molecularity of the reaction is 2, but the reaction may not be elementary
Reaction is elementary but the molecularity may not be 2
Reaction is elementary with a molecularity of 2
Reaction may be elementary with molecularity of 2

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Chemical Reaction Engineering
In the reversible reaction of the type, A + B ⇋ AB, in general

The combination reaction will be exothermic, while the dissociation reaction will be endothermic
The combination reaction will be endothermic, while the dissociation reaction will be exothermic
Neither of the reactions will be en-dothermic
Both forward and backward reactions will be exothermic

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