Select all of the correct statements about equilibrium from the choices below. (

Question

Select all of the correct statements about equilibrium from the choices below.

(a) At equilibrium the rates of forward and reverse reactions are equal.



(b) At equilibrium the forward rate constant equals zero.



(c) As a reaction proceeds forward toward equilibrium the product concentrations rise.



(d) At equilibrium the rate of change of reactant concentration is zero.



(e) At equilibrium there are always equal amounts of reactants and products.



(f) As a reaction proceeds forward toward equilibrium the forward rate constant drops.

Explanation / Answer

The equilibrium is the state of the reversible reaction at which rate of forward reaction is equal to reverse reaction. At equilibrium there is no net change in concentration of reactants and products, but due to same rate of forward and backward reaction, amount of substance that disappears is exactly equal to amount of subsance that appears.

SO, the correct statement is

(a) At equilibrium the rates of forward and reverse reactions are equal.

(c) As a reaction proceeds forward toward equilibrium the product concentrations rise.

(f) As a reaction proceeds forward toward equilibrium the forward rate constant drops.

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