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In a multi-step reaction, the rate is de...

In a multi-step reaction, the rate is determined by conisdering the………….step.

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The slowest step in the reaction is the rate determing step.
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The rate law expresison is given for a typical reaction, n_(1)A + n_(2) B rarrP as r = k[A]^(n)[B]^(n2) . The reaction completes only in one step and A and B are present in the solution. If the reaction occurs in more than one step, then the rate law is expressed by consdering the slowest step, i.e., for S_(N)l reaction r = k[RX] . If the eraction occurs in more than one step and the rates of the steps involved are comparable, then steady state approximation is conisdered, i.e., the rate of formation of intermediate is always equal to the rate of decompoistion of the intermediate. Conisder the reaction: [[I_(2) underset(k_(1))overset(k_(2))hArr2I("rapid equilibrium")],[H_(2)+2I overset(k_(3))rarr 2HI("slow")]] If we increase the concentration of I_(2) two times, then the rate of formation of HI will

The rate law expresison is given for a typical reaction, n_(1)A + n_(2) B rarrP as r = k[A]^(n)[B]^(n2) . The reaction completes only in one step and A and B are present in the solution. If the reaction occurs in more than one step, then the rate law is expressed by consdering the slowest step, i.e., for S_(N)l reaction r = k[RX] . If the eraction occurs in more than one step and the rates of the steps involved are comparable, then steady state approximation is conisdered, i.e., the rate of formation of intermediate is always equal to the rate of decompoistion of the intermediate. Conisder the reaction: [[I_(2) underset(k_(1))overset(k_(2))hArr2I("rapid equilibrium")],[H_(2)+2I overset(k_(3))rarr 2HI("slow")]] Which of the following expresison is correct?

The rate of reaction is determined by slow step reaction. The step is called

What is the rate determining step of a reaction ?

In the rate-limiting approximation for a two-step reaction, the overall rate of the reaction is always equal to the rate of the ……….. Step in the reaction mechanism.

Consider the statements for given reaction 1. In the first step, there is breaking of C - O bond 2. The second step is S_(N)2 reaction 3. There is retention of configuration in the first step 4. There is inversion of configuration in the second step

Consider the following reaction to answer the next three questions: In the above reaction. The reactive intermediate formed in the first step(step-i) is

DINESH PUBLICATION-CHEMICAL KINETICS-Qestions from board examinations
  1. Give one example of a fractional order reactions:

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  2. Rate of reaction is given by the eqution : Rate = k[A]^(2)[B]. What ar...

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  3. In a multi-step reaction, the rate is determined by conisdering the………...

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  4. For the hypothetical reaction, A rarr Products, rate =-k[A] The ne...

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  5. Why in general a reaction does not proceed with a uniform rate through...

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  6. State one condition in which a bimolecular reaction may be kinetically...

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  7. The rate law for the decomposition of N(2)O(5) is given as: Rate =k[N(...

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  8. What is the source of activation energy in a photochemical reaction?

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  9. What is the order of photochemical reactions?

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  10. How is activation energy of a reaction affected i) by using a catalyst...

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  11. With the help of an example explain what is meant by pseudo first or...

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  12. What is the elementary reactions?

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  13. In some cases, it is found that a large number of colliding molecules ...

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  14. Express the relation between the half-life period of a reaction and in...

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  15. Express the relatin between the half-life period of a reaction and ini...

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  16. For a reaction A + 2B to C, rate =k[A]^(x)[B]^(y). What is the order o...

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  17. What are the units of rate constant for zero order reactions?

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  18. For the reaction : Ester + H^(+) to Acid + Alcohol, rate = k[A]^(1//2)...

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  19. For a reaction, A+Brarr Product, the rate law is given by r=k[A]^((1)/...

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  20. The conversion of molecules X to Y follows second order kinetics. If t...

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