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The half life of a substance is 30 years...

The half life of a substance is 30 years. What amount of it will be left after 120 years.

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SHARAM PUBLICATION-CHEMICAL KINETICS-EXERCISE
  1. Show that the time required for 99.9% completion of a first order reac...

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  2. Show that the time required for 75% completion of a first order reacti...

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  3. The half life of a substance is 30 years. What amount of it will be le...

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  4. What is the order of a reaction if its unit of the rate constant is se...

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  5. Calculate the rate constant of a first order reaction which is 90 % co...

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  6. The rate constant of a first order reaction is k = 6.93 xx 10^(-5) Sec...

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  7. The rate of a chemical reaction decreases as reaction proceeds. Explai...

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  8. For a first order reaction, it takes 16 min to complete 50% reaction. ...

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  9. What are the various factors affecting the rate of reaction.

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  10. Derive the half life period from the zero order rate equation.

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  11. The half life period of a first order reaction is 30 minutes. Calculat...

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  12. The reaction A rarr B has Delta H = -10 kcal and Ea = 30 kcal. Find Ea...

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  13. If the rate constant of reaction is 2S^(-1) at 700 k and 32S^-1 at 800...

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  14. Calculate the activation energy of a reaction whose reaction rate at 3...

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  15. What is the difference between order and molecularity of a reaction ?

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  16. What is zero order reaction? Give one example.

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  17. On the basis of activation energy, how can you explain slow and fast r...

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  18. Define order and molecularity of a reaction .

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  19. Why hydrolysis of ethyl acetate with NaOH is 2nd order while the hydro...

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  20. Define rate of a reaction. Write the expression for the rate of reacti...

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