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The beta- activity of a sample of CO2 pr...

The `beta`- activity of a sample of `CO_2` prepared from a contemporary wood gave a count rate 25.5 counts per minute (c.p.m). The same mass of `CO_2` from an ancient wooden statue gave a count rate of 20.5 c.p.m. in the same counter conditions. Calculate its age to the nearest 50 years taking `t_(1//2)` for `"^14C` as 5770 years. What would be the expected count rate of an identical mass of `CO_2` from a sample which is 4000 years old ?

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MODERN PUBLICATION-CHEMICAL KINETICS-EXERCISE
  1. The beta- activity of a sample of CO2 prepared from a contemporary woo...

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  2. How can we express the rates of following reactions in terms of concen...

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  3. How can we express the rates of following reactions in terms of concen...

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  4. How can we express the rates of following reactions in terms of concen...

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  5. For the reaction, N2+3H2 rarr 2NH3 the rate of reaction measured as (D...

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  6. For the reaction : 2N2O5 rarr 4NO2+O2 the rate of reaction measured as...

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  7. A reaction, 3X rarr 2Y+Z proceeds in a closed vessel. The rate of disa...

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  8. Consider the reaction: 4NO2(g) + O2(g) rarr 2N2O5(g) In an experim...

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  9. Explain with examples the meaning of the terms average rate and instan...

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  10. A reaction 3X rarr 2Y+Z procees in a closed vessel. The rate of disapp...

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  11. The rate of formation of a Second order dimerisation reaction is 5.8xx...

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  12. The gas phase decomposition of COCl2, COCl2 (g) rarr CO(g) + Cl2 (g) f...

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  13. Identify the reaction order for each of the following rate constants -...

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  14. Identify the reaction order for each of the following rate constants -...

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  15. Identify the reaction order for each of the following rate constants -...

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  16. Identify the reaction order for each of the following rate constants -...

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  17. Identify the reaction order for each of the following rate constants -...

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  18. For a reaction: A+B rarr Products, the rate is given as k[A]^(1//3) ...

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  19. The rate law for a reaction is found to be : Rate = k [NO2^(-) [I^(-)]...

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  20. The rate law for a reaction is found to be : Rate = k [NO2^(-) [I^(-)...

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  21. The rate law for a reaction is found to be : Rate = k [NO2^(-) [I^(-)...

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