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Punjab Medical Punjab - MET Solved Paper-2010

  • question_answer
    For a chemical reaction\[xA\to yM\]rate law is\[r=k{{[A]}^{3}}\]. If the concentration of A is doubled, the reaction rate will be

    A)  doubled             

    B)  quadrupled

    C)  increased 4 times           

    D)  increased 8 times

    Correct Answer: D

    Solution :

    For a chemical reaction,\[{{r}_{1}}=k{{[A]}^{3}}\] If the concentration of A is doubled then\[{{r}_{2}}=k{{[2A]}^{3}}\]\[{{r}_{2}}=k8{{[A]}^{3}}\] Hence, the rate of reaction will be increased 8 times.


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