J & K CET Engineering J and K - CET Engineering Solved Paper-2011

  • question_answer
    In which one of the following reactions, the yield of the products decreases by increasing the pressure?

    A)  \[2S{{O}_{2}}(g)+{{O}_{2}}(g)2S{{O}_{3}}(g)\]

    B)  \[{{N}_{2}}(g)+3{{H}_{2}}(g)2N{{H}_{3}}(g)\]

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

    D)  \[{{N}_{2}}(g)+{{O}_{2}}(g)2NO(g)\]

    Correct Answer: C

    Solution :

     If \[\Delta n>0,\]the increase in pressure favours backward reaction and therefore the yield of the products decreases. \[PC{{l}_{5}}(g)PC{{l}_{3}}(g)+C{{l}_{2}}(g)\] Here, An > 0, hence the yield of the products decreases by increasing the pressure.


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