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In the presence of a catalyst, the heat ...

In the presence of a catalyst, the heat evolved or absorbed during the reaction:

A

increase

B

decreases.

C

remains unchanged.

D

may increase or decrease.

Text Solution

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The correct Answer is:
C
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NARAYNA-CHEMICAL KINETICS -EXERCISE -4
  1. The role of a catalyst is to change

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  2. In the presence of a catalyst, the heat evolved or absorbed during the...

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  3. Activation energy of a chemical reaction can be determined by:

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  4. Consider figure and mark the correct option

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  5. Consider a first order gas phase decomposition reaction given below: ...

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  6. According to Arrhenius equation rate constant K is equal to A e.^(-...

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  7. Consider the Arrhenius equation given below and mark the correct op...

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  8. Which of the following statement is not correct about order of a ...

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  9. Consider the graph given in figure . Which of the following optio...

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  10. Which of the following statements is correct?

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  11. Which of the following expression is correct for the rate of reac...

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  12. Rate law for the reaction, A + 2B to C is found to be Rate = k [A] [...

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  13. Which of the following statements is incorrect about the collison theo...

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  14. A first order reaction is 50% completed in 1.26 xx 10^(14)s. How much ...

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  15. Which of the following statements is not correct for the catalyst?

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  16. The value of rate constant of a pseudo first order reaction

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  17. Consider the reaction A to B. The concentration of both the reactan...

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  18. The time for half-life period of a certain reaction, A rarr products i...

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  19. The rate of a chemical reaction doubles for every 10^(@)C rise of temp...

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  20. A reactant (A) forms two products A overset(K(1)) to B, Activation en...

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