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JEE Main & Advanced Chemistry Equilibrium / साम्यावस्था Question Bank Kp and Kc Relationship and Characteristics of K

  • question_answer
    Consider the following reversible reaction at equilibrium, \[2{{H}_{2}}{{O}_{(g)}}\] ⇌ \[2{{H}_{2(g)}}+{{O}_{2(g)}}\]; \[\Delta H=241.7\,kJ\] Which one of the following changes in conditions will lead to maximum decomposition of \[{{H}_{2}}{{O}_{(g)}}\]            [Kerala PMT 2004]

    A)                 Increasing both temperature and pressure

    B)                 Decreasing temperature and increasing pressure

    C)                 Increasing temperature and decreasing pressure

    D)                 Increasing temperature at constant pressure 

    Correct Answer: C

    Solution :

                    \[\Delta H\] is positive so reaction move forward by increase in temperature & value of \[\Delta n=3-2=+1\] is positive so it forward with decrease in pressure.


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