JEE Main & Advanced Chemistry Equilibrium Question Bank Activation energy, Standard free energy and Degree of dissociation and Vapour density

  • question_answer For the reaction                                             \[{{H}_{2}}(g)+{{I}_{2}}(g)\] ⇌                                                                                               \[2HI(g)\] ,  the equilibrium constant changes with [IIT 1981; MNR 1983, 85; NCERT 1984; MP PMT 1987, 97; MP PET/PMT 1988; CPMT 1976, 90; UPSEAT 2000]

    A)                 Total pressure

    B)                 Catalyst

    C)                 The amounts of                                                                                            \[{{H}_{2}}\]  and                                                                                             \[{{I}_{2}}\]  taken

    D)                 Temperature

    Correct Answer: D

    Solution :

              Equilibrium constant changes with temperature, pressure and the concentration of either reactant or product.

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