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VMMC VMMC Medical Solved Paper-2010

  • question_answer
    What is \[{{K}_{c}}\] for the following equilibrium when equilibrium concentration of each substance is [8 \[[S{{O}_{2}}]=0.60M,\,\,[{{O}_{2}}]=0.82\,M\] and \[[S{{O}_{3}}]=1.90M\]? \[2S{{O}_{2}}(g)+{{O}_{2}}(g)\rightleftharpoons 2S{{O}_{3}}(g)\]

    A) 12.229                                  

    B) 21.229  

    C)        12.922                  

    D)        21.046

    Correct Answer: A

    Solution :

    For equation \[2S{{O}_{2}}(g)+{{O}_{2}}(g)\rightleftharpoons 2S{{O}_{3}}(g)\] \[{{K}_{c}}=\frac{{{[S{{O}_{3}}]}^{2}}}{{{[S{{O}_{2}}]}^{2}}[{{O}_{2}}]}\] \[=\frac{{{[1.90\,M]}^{2}}}{{{[0.60M]}^{2}}[0.82M]}\] \[=12.229\,{{M}^{-1}}\]or \[12.229\,L\,mo{{l}^{-1}}\]


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