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The concentrations of N(2)O(5) decomposi...

The concentrations of `N_(2)O_(5)` decomposing in first order kinetics after 800 s is `1.45 mol L^(-1)` and after `1600` s is `0.88 mol L^(-1)`. Calculate the rate constant.

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The correct Answer is:
`6.2 xx 10^(-4) s^(-1)`
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The decomposition of N_(2)O_(5) in C Cl_(4) at 318K has been studies by monitoring the concentration of N_(2)O_(5) in the solution. Initially the concentration of N_(2)O_(5) is 2.33 mol L^(-1) and after 184 minutes, it is reduced to 2.08 mol L^(-1). The reaction takes placed according to the equation 2N_(2)O_(5)(g)to 4 NO _(2)(g) +O_(2)(g) Calculate the average rate of this reaction in terms of hours, minutres and seconds. What is the rate of proudction of NO_(2) during this period ?

The initial concentration of N_(2)O_(5) in the following first order reaction . N_(2)O_(5) to 2NO_(2)(g) + 1//2O_(2)(g) was 1.24 xx 10^(-2) mol L^(-1)

The initial concentration of ethyl acetane is 0.85 mol L^(-1) . Following the acid catalysed hydrolysis the , concentrations of ester after 30 min and 60 min of the reaction are respectively 0.8 and 0.754 mol L^(-1) . Calculate the rate constant and pseudo rate constant.

In a first order ractin, the concentration of the reaction is reduced from 0.6 mol /L to 0.2 mol/L in 5 min. Calculate the rate fconstnat (k).

The rate of a first order reaction is 0.04 mol L^(-1) s^(-1) after 10 s, and 0.03 mol L^(-1) s^(-1) after 20 s of starting the reaction . Calculate the half- life of the reaction .

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In a reaction 2A to Products, the concentration of A decreases from 0.5 mol I^(-1) to 0.4 mol L^(-1) in 10 minutes. Calculate the rate during this interval.

The initial concentratin of N_(2)O_(5) in the following first order reaction N_(2)O_(5)(g) to 2NO_(2)(g)+(1)/(2O_(2))(g) was 1.24 xx10^(-2) mol L^(-1) at 318K. The concentration of N_(2)O_(5) after 60 minutes was 0.20xx10^(-2) mol L^(-1). Calculate the rate constant of the reaction at 138 K.

AAKASH SERIES-CHEMICAL KINETCS-EXERCISE - 3.2
  1. What is a pesudo - order reaction ? Why is it so called ?

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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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  5. A reaction proceeds 5 times more at 60^(@)C, as it does at 30^(@)C ...

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  6. Rate constant of a reaction is 10^(-3) s^(-1). Calculate the perc...

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

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  8. Time required for 50% completion of the first order reaction in ...

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  9. A first order reaction is 50% complete in min at 27^(@)C ?and 10 m...

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  10. The concentrations of N(2)O(5) decomposing in first order kinetics a...

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  11. CH(3)O CH(3) (g) to CH(4)(g) + H(2)(g) + CO(g) . The decomposition fo...

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  12. For the catalytic decomposition of a substance , half - lives are g...

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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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  16. During nuclear explosion , one of the products is ""^(90)Sr with h...

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  17. The half - life for radioactive decay of ""^(14)C is 5730 years . An...

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  18. Acid catalysed hydrolysis of ethylacetate can be considered as an ex...

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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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