BCECE Engineering BCECE Engineering Solved Paper-2004

  • question_answer
    The most favorable condition for the manufacture of \[N{{H}_{3}}\]is:

    A) high temperature and high pressure

    B) low temperature and low pressure

    C) high temperature and low pressure

    D) low temperature and high pressure

    Correct Answer: D

    Solution :

    Key Idea: Use Le-Chatelier principle \[{{N}_{2}}(g)+3{{H}_{2}}(g)2N{{H}_{3}},\] \[\Delta \Eta =-92.38\,kJ\,mo{{l}^{-1}}\] In forward reaction, the volume decreases and it is exothermic reaction. According to Le-Chatelier principle, such reactions are favoured at low temperature and high pressure.


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