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NEET Chemistry Chemical Kinetics / रासायनिक बलगतिकी Question Bank Self Evaluation Test - Chemical Kinetics

  • question_answer
    The rate constant for a first order reaction whose half life is 480 sec, is:                        

    A) \[1.44\times {{10}^{-3}}se{{c}^{-1}}\]           

    B) \[1.44\times se{{c}^{-1}}\]

    C) \[0.72\times {{10}^{-3}}se{{c}^{-1}}\]           

    D) \[2.88\times {{10}^{-3}}se{{c}^{-1}}\]

    Correct Answer: A

    Solution :

    [a] \[k=\frac{0.693}{{{t}_{1/2}}}=\frac{0.693}{480}=1.44\times {{10}^{-3}}{{s}^{-1}}\]


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