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The initial concentration of [A] = 0.3 m...

The initial concentration of [A] = 0.3 mol/lit. The concentration after 2.3 min is 0.15 moles/lit. What is the value of rate constant.

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Knowledge Check

  • A_((g))toB_((g)) is a first order reaction. The initial concentration of A is 0.2 mol. "lit"^(-1) . After 10 minutes the concentration of B is found to be 0.18"mol. lit"^(-1) . The rate constant ("in min"^(-1)) for the reaction is

    A
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    C
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    D
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  • For the reaction, Ato products the rate of reaction is 7.5xx10^(-4)" mole. lit"^(-1)"sec"^(-1) . If the concentration of A is 0.5" mole lit"^(-1) , the rate constant is

    A
    `1.5xx10^(-3)"sec"^(-1)`
    B
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    C
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  • The initial concentration of N_(2)O_(5) in the first order reaction N_(2)O_(5)to2NO_(2)+1/2O_(2) was 1.24xx10^(-2) mole /lit at 318 k. The concentration of N_(2)O_(5) after 60 min is 0.20xx10^(-2) mole/lt. Calculate the rate constant of reaction at 318 K

    A
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    B
    `0.0602"sec"^(-1)`
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    `0.0802"sec^(-1)`
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    `1.265"min"^(-1)`

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