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Which of these factors affect the value of the rate constant for a reaction?
(P) Temperature
(Q) Reactant concentration
(R) Use of catalyst

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P only

Q only

P and R only

P, Q and R

answer is C.

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Detailed Solution

(1) Rate constant is independent of the concentration of reactant.

(2) Its value increases with rise in temperature and decreases with lowering of temperature.

(3) A catalyst changes the rate of reaction and affects the value of rate constant.

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