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Which of the following statements is cor...

Which of the following statements is correct?

A

The catalytic efficiency of a solid catalyst depends upon its surface area.

B

Catalyst operates by providing alternate path for the reactio that involves a lower activation energy.

C

Catalyst lowers the energy of activation of the forward direction with out affecting the energy of activation of the backward direction.

D

Catalyst does not affect the overall enthalpy change of the reaction.

Text Solution

Verified by Experts

The correct Answer is:
A, B, D
A catalyst lowers the activation energy oif both F.R and B.R.
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AAKASH SERIES-CHEMICAL KINETICS-LEVEL-II(LECTURE SHEET EXERCISE-I SINGLE & ONE OR MORE THAN ONE CORRECT ANSWER)
  1. Identify incorrect statements

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  2. For the reaction A+BtoC+D. The variation of the concentration of the p...

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  3. Which of the following statements is correct?

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  4. For the reaction:[Cu(NH(3))(4)]^(2+)+H(2)OhArr[Cu(NH(3))(3)H(2)O]^(2+)...

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  5. The distribution of molecular K.E. at two temperatures is shown in the...

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  6. Which statement (s ) are correct?

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  7. For the reaction, following data is given AtoB:K(1)=10^(15) exp ((-20...

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  8. Fraction of reactant consumed in a first order reaction after time t i...

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  9. Mark correct statement about given graph:

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  10. Effective collision are those in which molecules must:

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  11. The activation energy of a reaction is zero. The rate constant of the ...

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  12. The rate constant is given by the equation K=Ae^(-Ea//RT). Which facto...

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  13. Which of the following statement(s) are true regarding the log K vs 1/...

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  14. When the temperature is raise from 300 K to 400 K the rate of a reacti...

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  15. For the decomposition of N(2)O(5)(g) it is given that 2NOI(2)O(5(g))to...

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  16. Unit of frequency factor A in : KL+AE^(-Ea//RT) is

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  17. Rate constant K varies with temperature by equation log K("min"^(-1))=...

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  18. The progress of the reaction AhArrnB with time is presented in the fig...

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  19. Select the correct statements(s)

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  20. Which of the following are correct?

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