JCECE Medical JCECE Medical Solved Paper-2010

  • question_answer
    For which one of the following reactions \[{{K}_{p}}={{K}_{c}}\]?

    A) \[PC{{l}_{5}}PC{{l}_{3}}+C{{l}_{2}}\]

    B)  \[{{N}_{2}}+{{O}_{2}}2NO\]

    C)  \[{{N}_{2}}+3{{H}_{2}}2N{{H}_{3}}\]

    D)  \[2S{{O}_{3}}2S{{O}_{2}}+{{O}_{2}}\]

    Correct Answer: B

    Solution :

     \[{{K}_{p}}={{K}_{c}}{{(RT)}^{\Delta {{n}_{g}}}}\] \[{{K}_{p}}={{K}_{c}}\]only when \[{{(RT)}^{\Delta n}}=0\] [a]\[PC{{l}_{5}}PC{{l}_{3}}+C{{l}_{2}}\] \[\Delta {{n}_{g}}={{n}_{p}}-{{n}_{R}}\] \[=2-1\] \[=1\] \[\therefore \] \[\Delta {{K}_{p}}\ne {{K}_{c}}\] [b] \[{{N}_{2}}+{{O}_{2}}2NO\] \[\Delta {{n}_{g}}=2-2\] \[=0\] \[\therefore \] \[{{K}_{p}}\ne {{K}_{c}}\] [d] \[2S{{O}_{3}}2S{{O}_{2}}+{{O}_{2}}\] \[\Delta {{n}_{g}}=3-2=1\] \[\therefore \] \[{{K}_{p}}\ne {{K}_{c}}\]


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