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A large increase in the rate of a reacti...

A large increase in the rate of a reaction for a rise in temperature is due to

A

The decrease in the number of collision

B

The increase in the number of activated molecules

C

The shortening of the mean free path

D

The lowering of the activation energy

Text Solution

Verified by Experts

The correct Answer is:
b
The increase in collisions frequency brings in an increase in effective collisions and thus rate of reaction increases .
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ERRORLESS -CHEMICAL KINETICS -Ordinary Thinking (Collision theory , Energy of activation and Arrhenius equation )
  1. In the Arrhenius plot of ln k vs (1)/(T) , a linear plot is obtained w...

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  2. If the reaction rate at a given temperature becomes slower

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  3. A large increase in the rate of a reaction for a rise in temperature i...

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  4. The minimum energy required for molecules to enter into the reaction i...

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  5. The rate constant of a reaction at temperature 200 K is 10 times less ...

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  6. On increasing the temperature, the rate of the reaction increases beca...

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  7. A reaction having equal energies of activation for forward and reverse...

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  8. A reaction rate constant is given by : K= 1.2 xx10^(14)e^((-25000)/(RT...

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  9. The Arrhenius equation expressing the effect of temperature on the rat...

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  10. The rate constant is given by the equation k = P.Ze^(-E//RT). Which fa...

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  11. In the given graph the activation energy , E(a) for the reverse reacti...

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  12. Catalyst in a reaction

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  13. With respect to the equation, k = Ae^(-Ea/RT) in chemical kinetics, wh...

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  14. The energies of activation for forward and reverse reaction for A(2)+...

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  15. The reactions with low activation energy are always

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  16. The minimum energy a molecule should possess in order to enter into a ...

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  17. The reason for almost doubling the rate of reaction on increasing the ...

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  18. Why do most chemical reaction rates increase rapidly as the temperatur...

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  19. The rate of reactions exhibiting negative activation energy

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  20. Which increases on increase of temperature

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