JEE Main & Advanced Sample Paper JEE Main Sample Paper-41

  • question_answer
    Which of the following rate laws has an overall order of 0.5 for reaction involving substances x, y and z?

    A)  Rate\[=k({{C}_{x}})({{C}_{y}})({{C}_{z}})\]

    B)  Rate\[=k{{({{C}_{x}})}^{0.5}}{{({{C}_{y}})}^{0.5}}{{({{C}_{z}})}^{0.5}}\]

    C)  Rate\[=k{{({{C}_{x}})}^{1.5}}{{({{C}_{y}})}^{-1}}{{({{C}_{z}})}^{0}}\]

    D)  Rate\[=k({{C}_{x}}){{({{C}_{y}})}^{0.5}}/{{({{C}_{z}})}^{2}}\]

    Correct Answer: C

    Solution :

    Rate\[=k{{({{C}_{x}})}^{1.5}}{{({{C}_{y}})}^{-1}}{{({{C}_{z}})}^{0}}\] Order = sum of all exponential term \[=1.5+(-1)=0.5\]


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