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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2004

  • question_answer
    In the manufacture of ammonia by Habers process,\[{{N}_{2(g)}}+3{{H}_{2}}2N{{H}_{3(g)}}+92.3\,\,kJ\]which of the following conditions is unfavourable?

    A)  Increasing the temperature

    B)  Increasing the pressure

    C)  Reducing the temperature

    D)  Removing ammonia as it is formed

    Correct Answer: A

    Solution :

    \[{{N}_{2}}(g)+3{{H}_{2}}(g)2N{{H}_{3}}(g)+92.3\,\,kj\] According to Le-chateliars principle, the favourable conditions for the reaction are: (i) low temperature (as the reaction is exothermic) (ii) high pressure (volume is decreasing) (iii) constant removal of ammonia gas as it is formed.


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