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Ten gram atoms of an alpha active elem...

Ten gram atoms of an alpha active element disintegrated in a sealed contain in one hour. If the gas collected is 11.2 cc at STP , calcualte the half - life of the radioactive element .

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13860 hr
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AAKASH SERIES-CHEMICAL KINETCS-EXERCISE - 3.2
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  2. If a second order reaction is 75% complete in 1 hr , calculate th...

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  3. For a reaction , the reactant concentration decreases 20% in 1 hr a...

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  4. The rate of a first order reaction is 0.04 mol L^(-1) s^(-1) after ...

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  7. For a reaction A + 2B to 2C, the kinetic data is given below: ...

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  13. A drop of solution (0.05 mL) contains 2 xx 10^(6) mol of H^(+). How ...

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  14. Half - life period of ""^(14)C is 5770 years . If and old wooden t...

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  15. Ten gram atoms of an alpha active element disintegrated in a sealed...

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  19. Rate of decomposition of a substance increases by a factor 2.25 fo...

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  20. For a first order reaction , show that time required for 99% com...

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