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How catalyst increases rate of a reactio...

How catalyst increases rate of a reaction.

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Catalyst provides an alternate pathway by reducing the activation energy and lowering the energy barrier. More molecules enters the threshold energy state leading to chemical reaction and hence increases the rate.
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SUBHASH PUBLICATION-CHEMICAL KINETICS -PROBLEMS SECTION
  1. How catalyst increases rate of a reaction.

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  2. For the reaction R to P, the concentration of a reactant changes from ...

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  3. In a reaction 2A product, the concentration of A decreases from 0.5 mo...

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  4. The conversion of molecules X to Y follows second order kinetics. IF c...

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  5. The initial concentration of N(2)O(5) in the following first order rea...

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  6. The rate constant of a certain first order reaction is 200S^(-1). What...

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  7. A certain first order reaction is half completed in 46 min. Calculate ...

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  8. Show that in case of a first order reaction, the time taken for comple...

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  9. Show that t(99%) = 2 xx t(90%)

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  10. Rate constant of a first order reaction is 0.0693 min^(-1). Calculate ...

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  11. The rate constant for a first order reaction is 60s^(-1). How much tim...

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  12. A first order reaction takes 40 min for 30% decompositon.

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  13. The half life for radioactive decay of ""^(14)C is 5730 years. An arch...

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  14. A first order reaction is found to have a rate constant K=5.5xx10^(-14...

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  15. A first order reaction has a rate constant 1.15 xx 10^(-3)s^(-1). How ...

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  16. Time required to decompose SO(2)Cl(2) to half of its initial amount is...

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  17. The rate constant of a particular reaction doubles when the temperatur...

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  18. The rate constant of a raction at 500 K and 700 K are 0.02 s^(-1) and ...

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  19. The rate of a chemical reaction doubles for an increase of 10K in abso...

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  20. The rate of a reaction becomes four times when the temperature changes...

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