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

  • question_answer
    A chemical reaction was carried out at 300 K and 280 K. The rate constants were found to be \[{{k}_{1}}\] and \[{{k}_{2}}\] respectively, then

    A) \[{{k}_{2}}=4{{k}_{1}}\]    

    B) \[{{k}_{2}}=2{{k}_{1}}\]

    C) \[{{k}_{2}}=0.25\,{{k}_{1}}\]             

    D) \[{{k}_{2}}=0.5{{k}_{1}}\]

    Correct Answer: C

    Solution :

    [c] The rate constant doubles for \[10{}^\circ C\] rise in temperature. For \[20{}^\circ C\] rise, the rate constant will be 4 times \[\therefore {{k}_{1}}=4{{k}_{2}}or\,{{k}_{2}}=0.25{{k}_{1}}\]


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