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Chemical Kineti...

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  • Question 1
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    The values of enthalpies of reactants and products are $$x$$ and $$y$$ $$J/mol$$, respectively. If the activation energy for the backward reaction is $$z$$ $$J/mol$$, then the activation energy for forward reaction will be
    (in J/mol)

  • Question 2
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    The initial rate of a zero-order reaction:
    $$A(g)\rightarrow 2B(g)$$ is $$0.01M\quad { min }^{ -1 }$$. If the initial concentration of $$A$$ is $$0.1M$$, the concentration of $$B$$ after $$60s$$ is?

  • Question 3
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    Which of the following is incorrect statement?

  • Question 4
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    A zero-order reaction $$A\rightarrow B$$. At the end of $$1h$$, $$A$$ is $$75$$% reacted. How much of it will be left unreacted at the end of $$2h$$?

  • Question 5
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    At a certain temperature, the reaction between $$NO$$ and $${O}_{2}$$ is fast, while that between $$CO$$ and $${O}_{2}$$ is slow. It may be concluded that

  • Question 6
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    In general, the rate of a reaction can be increased by all the factors except

  • Question 7
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    For a zero-order reaction,

  • Question 8
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    Directions For Questions

    Three flasks A, B, and C have equal volumes. A is maintained at $$300$$K, B at $$600$$K, and C at $$900$$K. Flask A contains $$H_2$$ gas, flask B contains $$CH_4$$ gas and flask C contains $$O_2$$ gas, and masses of all gases are the same. Assume ideal behavior of gases.

    ...view full instructions

    Flask with greater collision number of the molecules.

  • Question 9
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    The time taken in $$75$$% completion of zero-order reaction is $$10h$$. In what time, the reaction will be $$90$$% completed?

  • Question 10
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    The rate expression for a reaction is $$\cfrac { -dC }{ dt } =\cfrac { \alpha C }{ 1+\beta C } $$, where $$\alpha $$ and $$\beta$$ are constants and $$C$$ is the concentration of reactant at time, $$t$$. The half-life for this reaction is

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