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What is half-life of a reaction? Illustr...

What is half-life of a reaction? Illustrate your answer with an example.

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The time required for the initial concentration of the reactants to become half of it's value during the progress of the reaction is called half life `(t_(1//2))` of reaction.
Eg: The radio active of `C-14` is exponential with a half life of 5730 years.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-ELECTROCHEMISTRY & CHEMICAL KINETICS-VERY SHORT ANSWER QUESTIONS
  1. Define molecularity of a reaction, Illustrate with an example.

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  2. What is rate determining step in a complex reaction ?

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  3. Give the mechanism for the decomposition reacton of H(2)O(2) in alkali...

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  4. Write the equation relating [R], [R](0) and reaction time 't' for a z...

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  5. Drawn the graph that the concentration 'R', of the reactant and 't' th...

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  6. Give two examples for zero order reaction.

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  7. Write the intergrated equation for a fiest order reaction in terms of ...

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  8. Give two examples for gaseous first order reactions.

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  9. For the reaction A (g) to B(g) +C(g), write the intergrated rate equat...

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  10. What is half-life of a reaction? Illustrate your answer with an exampl...

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  11. Write the equation relating the half-life (t (1//2)) of a reaction and...

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  12. Write the equation useful to calculate half-life (t(1//2)) values for ...

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  13. What are pseudo first order reactions ? Give one example.

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  14. Write the Arrhenius equation for the rate constant (k) of a reaction.

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  15. By how many times the rate constant inhcreases for a rise of reaction ...

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  16. Explain the term 'activation energy' of a reaction with a suitable dia...

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  17. Write the equation which ralates th rate constants k(1)and k(2) at tem...

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  18. What is collision frequency (Z) of a reaction ? How is rate related to...

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  19. Draw the graphs between potential energy - reaction coordinates for ca...

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  20. What is the effect of temperature on the rate constant ?

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