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RAJASTHAN ­ PET Rajasthan PET Solved Paper-2003

  • question_answer
    The degree of dissociation of A is\[\alpha \]in equilibrium reaction\[A\xrightarrow[{}]{{}}2B+C\]. If one mole of A is taken initially then total .number of moles will in equilibrium.

    A)  \[1-\alpha \]             

    B)  \[1+\alpha \]

    C)  \[1-2\alpha \]

    D)  \[1+2\alpha \]

    Correct Answer: D

    Solution :

     \[A\xrightarrow[{}]{{}}2B+C\]
    1 0 0 at initial
    \[1-\alpha \] \[2\alpha \] \[\alpha \] at equilibrium
    Total number of moles at equilibrium \[=(1-\alpha )+2\alpha +\alpha \] \[=1+2\alpha \]


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