JEE Main & Advanced Sample Paper JEE Main Sample Paper-26

  • question_answer
    At some constant equilibrium temperature T K, the following gaseous equilibrium is set in a vessel fitted with a movable piston. \[{{N}_{2}}+3{{H}_{2}}\overset{{}}{leftrightarrows}2N{{H}_{3}}\] Now at this equilibrium state, total pressure is increased to some extent so as to attain a new equilibrium state. Which of the following will be true at the new equilibrium state?

    A)  concentration of \[N{{H}_{3}}\] will increase but that of \[{{N}_{2}}\] and \[{{H}_{2}}\] will remain same,

    B)  concentration of \[N{{H}_{3}},\,{{N}_{2}}\] and \[{{H}_{2}}\] will increase

    C)  There shall be no change in the concentration of any of these gases

    D)  concentration of \[N{{H}_{3}}\] will increase but that of \[{{N}_{2}}\] and \[{{H}_{2}}\] will decrease

    Correct Answer: B

    Solution :

    On increasing the pressure reaction will shift to forward direction but concentration of all species will increases.

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