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Chhattisgarh PMT Chhattisgarh PMT Solved Paper-2005

  • question_answer
    Formation of the \[S{{O}_{3}}\] takes place according to the reaction \[2S{{O}_{2}}+{{O}_{2}}\rightleftharpoons 2S{{O}_{3}};\]    \[\Delta H=-45.2kcal\] Which of the following factors favours the formation of \[S{{O}_{3}}\]?

    A)  Increase in temperature

    B)  Increase in pressure

    C)  Removal of oxygen

    D)  Increase in volume

    Correct Answer: B

    Solution :

    \[2S{{O}_{2}}+{{O}_{2}}\rightleftharpoons 2S{{O}_{3}},\] \[\Delta H=-45.2kcal\] To get better yield of \[S{{O}_{3}},\] one must keep (i) High pressure (ii) Low temperature (iii) High concentration of reactant


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