1.

When a catalyst increases the rate of a chemical reaction, the rate constant

Answer»

remains constant
increases
decreases
may increase or decrease depending on the order of reaction

Solution :RATE= k [Reactant ]
In the presence of catalyst, at the same concentration of the reactant, as the rate increases, k in CREASES.
Alternatively, `k=Ae^(-E_(a)//RT)` . In presence of catalyst at the same TEMPERATURE, `E_a` decreases. HENCE, k increases.


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