In a reaction,2x→y, the concentration of x decreases from 3.0 M to 1.5 M in 4 min. The rate of the reaction is 

In a reaction,2x→y, the concentration of x decreases from 3.0 M to 1.5 M in 4 min. The rate of the reaction is 

  1. A

    0.187 M min−1

  2. B

    1.87 M min-1

  3. C

    3.75×10−1M min−1

  4. D

    0.75 M min−1

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    Solution:

    Rate of reaction=−12d[x]dt
                             =−12[1.5−3.0]4=1.58=0.1875Mmin−1

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