Question

Which of the following variables are equal when the Br2(g)⇌2 Br(g) reaction reaches equilibrium:

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1. The forward and reverse reaction rates

2. k_f and k_r

3. concentrations of [Br₂] and [Br]

Equal:

Not Equal:

Note: Please explain..

Answer 1

Question :- Which of the following variables are equal when the Br₂(g)<-----> 2 Br(g) reaction reaches equilibrium:

Drag the appropriate items to their respective bins.

Ans :-

1. The forward and reverse reaction rates are Equal, because at the stage of equilibrium rate of forward reaction is equal to the rate of backward reaction as the concentration of both reactants and products becomes constant.

2. k_f and k_r are Not Equal, because at the stage of equilibrium, ratio of rate constant for forward reaction ( k_f) and rate constant for backward reaction (k_r) is equal to the equilibrium constant i.e. K_c. i.e.

K_c = k_f / k_r

3. Concentrations of [Br₂] and [Br] are Not Equal, because both have different stoichiometric coefficients.