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AMU Medical AMU Solved Paper-2014

  • question_answer
    Predict the effect of increased pressure on the following reaction equilibrium, \[2S{{O}_{2}}(g)+{{O}_{2}}(g)2S{{O}_{3}}(g)\]

    A)  Equilibrium shift to the right

    B)  Equilibrium shift to the left

    C)  No effect on equilibrium

    D)  Reaction stops

    Correct Answer: A

    Solution :

                    \[2\,\,S{{O}_{2}}(g)+{{O}_{2}}(g)2S{{O}_{3}}(g)\] Here, \[\Delta {{n}_{g}}=2-\,(2+1)=-1\] Therefore, according to Le-Chateliers principle, i the increase in pressure favours forward reaction, i.e., equilibrium will be shift to the right,


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