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For an exothermic reaqction, the energy ...

For an exothermic reaqction, the energy of activation of the reactants is

A

equal to the energy of activation of products

B

less than the energy of activation of products

C

greater than the energy of activation of products

D

sometimes greater and sometimes less than that of the products

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The correct Answer is:
B
Activation energy of reactant is less than the energy of activation of products.
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DISHA PUBLICATION-CHEMICAL KINETICS -EXERCISE 1 : CONCEPT BUILDER (TOPICWISE)(TOPIC 3 : Theories of Rate of Reaction)
  1. Rate constant k = 1.2 xx 10^(3) mol^(-1) L s^(-1) and E(a) = 2.0 xx 10...

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

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  3. A catalyst only

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  4. An example of autocatalytic reaction is

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  5. For an endothermic reaction, where Delta H represents the enthalpy of ...

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  6. The activation energies of the forward and backward reactions in the c...

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  7. A homogenous catalytic reaction takes place through the three alternat...

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  8. For an exothermic reaqction, the energy of activation of the reactants...

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  9. The activation energy for a simple chemical reaction A rarr B is E(a) ...

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  10. For a reaction the activation energy Ea=0 and the rate constant=3.2 ti...

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  11. A graph plotted between log k versus 1//T for calculating activation e...

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  12. When a biochemical reaction is carried out in laboratory from outside ...

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  13. For an endothermic reaction, energy of activation is Ea and enthalpy o...

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  14. In a zero-order reaction for every 10^(@) rise of temperature, the rat...

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  15. Activation energy (E(a)) and rate constants (k(1) and k(2)) of a chemi...

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  16. What is the activation energy for a reaction if its rate doubles when ...

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  17. The activation energy of a reaction can be determined from the slope o...

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