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What is the effect of catalyst on: (i)...

What is the effect of catalyst on:
(i) Gibbs energy `(DeltaG)` and
(ii) activation energy of a rection ?

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A catalyst lowers the activation energy and hence provides alternate path to the reaction. The reactants form the activated complex and change into the products easily.
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AAKASH INSTITUTE ENGLISH-CHEMICAL KINETICS-ASSIGNMENT (SECTION D : Assertion - Reason Type Questions)
  1. What is the effect of catalyst on: (i) Gibbs energy (DeltaG) and (...

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  2. A : Rate of reaction depends upon the concentration of the reactants. ...

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  3. A : NO2+COoverset("Slow")rarrCO2+NO Rate =K[NO2]^2 R : Rate does n...

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  4. A : If temperature does not affect the rate of reaction , Ea=0 R : L...

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  5. A : The rate constant of first order reaction is used to calculate pop...

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  6. A : A positive catalyst increases the rate of reaction . R : A posit...

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  7. A : The molecularity of reaction can never be fractional. R : Molecu...

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  8. A : The decomposition of gaseous N2O5 follows first order kinetics. ...

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  9. Assertion : Complex reaction takes place in different steps and the sl...

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  10. A : Rate constant increases with temperature. R : Rate of exothermic...

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  11. A : Hydrolysis of ester in acidic medium follows first order kinetics....

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  12. A : The rate constant of zero order reaction is equal to rate of react...

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  13. A : For exothermic reaction, DeltaH=Ea (forward) -Ea (backward) R ...

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  14. A : Arrhenius parameter (A) = P (steric factor) xx z (collision freq...

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  15. A : In presence of +ve catalyst, activation energy & threshold energy ...

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  16. A : when temperature becomes oo then the value of rate constant is max...

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