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NEET AIPMT SOLVED PAPER SCREENING 2011

  • question_answer
    The value of \[\Delta H\]for the reaction \[{{X}_{2}}(g)+4{{Y}_{2}}(g)\rightleftharpoons 2X{{Y}_{4}}(g)\] is less than zero. Formation of\[X{{Y}_{4}}(g)\]will be favored at

    A)  low pressure and low temperature

    B)  high temperature and low pressure

    C)  high pressure and low temperature              

    D)  high temperature and high pressure            

    Correct Answer: C

    Solution :

    \[{{X}_{2}}(g)+4{{Y}_{2}}2X{{Y}_{4}}(g);\] \[\Delta H<0\]and\[\Delta n<0\] \[\therefore \]The forward reaction is favoured at high pressure and low temperature. (According to Le-Chatelier's principle)


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