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Rate constant k of a reaction is depende...

Rate constant k of a reaction is dependent on temperatur:
`k=Ae^(Ea//RT)`
K has the least value at

A

high T and high `E_(a)`

B

high T and small `E_(a)`

C

low T and low `E_(a)`

D

low T and high `E_(a)`

Text Solution

Verified by Experts

The correct Answer is:
D

We have the arrhenius equation,
`k=Ae^(-E_a//RT)`
`=Ae^(ET//E_(a))`
K becomes least when T is low and `E_(a)` is high.
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-CHEMICAL KINETICS -Exercise 1
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  4. t(1//4) can be taken as the time taken for concentration of reactant t...

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  5. For a reaction, the rate constant is 2.34 s^(-1). The half-life period...

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  8. A first order reaction is 10% complete in 20 min. the time taken for 1...

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  9. For a zero order reaction, the integrated rate equation is

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  12. On the basis of Arrhenius equation, consider the following statement (...

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  13. What will happen, on increasing the temperature or decreasing the act...

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  14. The potential energy diagrams for four reaction are given below W...

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  15. Rate constant k of a reaction is dependent on temperatur: k=Ae^(Ea//...

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  16. In the graph of Arrhenius equation , the intercept and slope are

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  17. The rate constant of a reaction is given by k = 2.1 xx 10^(10) exp(-27...

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  18. Rate of a reaction can be expressed by Arrhenius equation as: k = Ae...

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  19. The decomposition of hydrocarbon follows the equation k=(4.5xx10^(11)...

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