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BVP Medical BVP Medical Solved Paper-2002

  • question_answer
    For the reaction \[Fe{{O}_{(s)}}+C{{O}_{(g)}}F{{e}_{(s)}}+C{{O}_{2}}_{(g)},\,\,{{K}_{C}}=5.0.\] If the concentration of CO at equilibrium is \[2.5\times {{10}^{-2}}mol/litre\] at \[{{100}^{o}}C\]. Then the equilibrium concentration of \[C{{O}_{2}}\] will be:

    A)  \[1.25\times {{10}^{-4}}m/L\]

    B)  \[12.5\times {{10}^{-2}}m/L\]

    C)  \[2.50\times {{10}^{-3}}m/L\]

    D)  \[2.50\times {{10}^{-4}}m/L\]

    Correct Answer: B

    Solution :

                    \[Fe{{O}_{(s)}}+C{{O}_{(g)}}\xrightarrow{{}}F{{e}_{(s)}}+C{{O}_{2(g)}}\] At equilibrium \[{{K}_{C}}=\frac{[C{{O}_{2}}]}{[CO]}\] given \[[CO]=2.5\times {{10}^{-2}}mol/litre,\,\,{{K}_{C}}=5.0\]                                 \[5=\frac{[C{{O}_{2}}]}{2.5\times {{10}^{-2}}}\] \[[C{{O}_{2}}]=12.5\times {{10}^{-2}}mol/litre\]


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