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Rate constant of a reaction depends upon...

Rate constant of a reaction depends upon:

A

temperature

B

initial concentration of the reactants

C

time of reaction

D

extent of reaction.

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Rate of reaction depends upon time of reaction,
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According to collision theory of chemical reactions, rate of a reaction depends upon collision frequency and fraction of effective collisions. The rate of a reaction generally increases with rise in temperature mainly because of increase in number of effective collisions. Arrhenius proposed a quantitative relation between rate constant and temperature as k= Ae^(-E_a//Rt) where E_a is activation energy. It is equal to the difference between threshold energy and average kinetic energy of reacting molecules. Which of the following plot will be linear ?

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OMEGA PUBLICATION-CHEMICAL KINETICS -MULTIPLE CHOICE QUESTIONS (MCQ s)
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  2. The reaction rate is found to depend upon two concentration terms. The...

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  3. For which of the following , the units of r constant and rate of the r...

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  4. A zero order reaction is one whose rate independent of

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  6. For the hypothetical reaction A to Products , rate = - k [A] The n...

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  7. Which of the following graphs corresponds to first order reaction:

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  8. Arrhenius equation is

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  9. The chemical reactions in which the reactants require high amount of a...

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  10. Which of the following does not influence the reaction rate?

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  11. A reaction was found to be of second order with respect to concentrati...

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  12. For a reaction involving solid, decreasing which given below will incr...

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  13. Rate of first order reaction depends upon

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  14. Under a given set of experimental conditions, with increase of concent...

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  15. Units of specific reaction rate for 2nd order reaction is

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  16. The hydrolysis of ester in alkaline medium is a

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  17. The second order rate constant is usually expressed

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  18. A zero order reaction is one whose rate independent of

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  19. Rate constant of a reaction depends upon:

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  20. The unit of 1^(st) order rate constant are

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