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A catalyst increases the rate of reactio...

A catalyst increases the rate of reaction by :

A

decreasing the free energy change for reaction.

B

decreasing the enthalpy change of reaction.

C

decreasing the activation energy for reaction.

D

all of the above

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The correct Answer is:
C
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GRB PUBLICATION-CHEMICAL KINETICS-F. Effect of Temperature and Catalyst
  1. For a first order reaction ArarrP , the temperature (T) dependent rate...

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  2. 75% of a first order reaction occurs in 30 min at 27^(@)C . 87.5% of ...

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  3. A catalyst increases the rate of reaction by :

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  4. The decomposition of a drug in human was found to be a first order pro...

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  5. An exothermic reaction ArarrB has an activation energy of 17 kJ per mo...

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  6. For a gas reaction ArarrP at T (K) the rate is given by : Rate=k^('...

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  7. Which of the following is incorrect regarding catalysis?

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  8. The temperature coefficient of a reaction is 2. Calculate rate of disa...

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  9. A catalyst decreases activation energy by 15 Kcal and it is observed t...

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  10. Activation energy of a chemial reaction can be determined by …...

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  11. {:(A rarr B, k(A)=10^(15)e^(-2000//T),),(C rarr D, k(C )=10^(14)e^(-10...

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  12. The rate of a reaction gets doubled when the temperature change from 7...

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  13. Which of the following statements is correct ?

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  14. Which of the following statement is/are correct with respect to Arrhen...

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

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  16. In gaseous reactions important for the understanding of the upper atom...

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

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  18. An iron catalyst is used in the Haber process in which process N2 and ...

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  19. Catalyst in a chemical reaction :

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  20. All of the following are expected to affect the rate of an irreversibl...

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