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The rate of a first order reaction is 1....

The rate of a first order reaction is `1.8 xx 10^(-3)` mol `L^(-1) "min"^(-1)` when the initial concentration is 0.3 mol `L^(-1)` The rate constant is

A

`1xx10^(-2)s^(-1)`

B

`1xx10^(-4)s^(-1)`

C

`6xx10^(-2)s^(-1)`

D

`4xx10^(-4)s^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • The rate of a first order reaction is 1.8 xx10 ^(-3 ) "Mol "L^(-1) "Min"^(-1) . When the initial concentration is 0.3 "Mol "L^(-1) . The rate constant in the units of second is

    A
    `1xx10^(-2) S^(-1)`
    B
    `1xx10^(-4)S^(-1)`
    C
    `6xx10^(-2)S^(-1)`
    D
    `6xx10^(-4)S^(-1)`

  • The rate for the 1^(st) order reaction is 0.69 xx10^(-2) mol L^(-1) min ^(-1) and the initial concentration is 0.2 mol L^(-1) . The half life period is ____.

    A
    1200 s
    B
    `0.33s`
    C
    600s
    D
    1s

  • The rate constant of a first order reaction is 2.0 xx 10^(-5)s^(-1) and the initial concentration is 0.10 mol L^(-1) . The initial rate is

    A
    `2.0 xx 10^(-6)"mol " L^(-1)s^(-1)`
    B
    `1.0 xx 10^(-6)"mol " L^(-1)s^(-1)`
    C
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    D
    `0.5 xx 10^(-6)"mol " L^(-1)s^(-1)`

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