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5 November, 08:42

The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.316 what is the half-life for this reaction (at the initial concentration) ? answers

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  1. 5 November, 08:44
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    Half life = 15hours

    Explanation:

    CH3CN (g) →CH3NC (g)

    Time (h) [CH3CN] (M)

    0.0 1.000

    5.0 0.794

    10.0 0.631

    15.0 0.501

    20.0 0.398

    25.0 0.316

    Half life for this reaction?

    Half-life is the time required for a quantity to reduce to half of its initial value.

    So we just need to look up the values in the table and find how much time for the intial concentation to be reduced to half of its initail value.

    From the table, it took 15 hours for the inital concentration (1.0) to be halved (0.501).

    Half life = 15hours
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