Chemical Reaction Engineering
A catalyst in a chemical reaction

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

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Chemical Reaction Engineering
For an ideal gas mixture undergoing a reversible gaseous phase chemical reaction, the equilibrium constant

Increases /decreases with pressure depending on the stoichiometric co-efficients of the reaction
Increases with pressure
Is independent of pressure
Decreases with pressure

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