Question

Which of the following is true for the equilibrium constant of a reaction?

Answer 1

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Answer 2

Answer: The correct answer is Option A.

Explanation:

Equilibrium constant is defined as the ratio of concentration of product to the concentration of reactants each raised to the power their stoichiometric ratios. It is represented by the symbol 'K'. For the general equilibrium equation:

$aA+bB\rightleftharpoons cC+dD$

The expression for equilibrium constant is given as:

$K=\frac{[C]^c[D]^d}{[A]^a[B]^b}$

There are three cases:

1. When K > 1; the reaction is product favored.
2. When K = 1; the reaction is at equilibrium.
3. When K < 1; the reaction is reactants favored.

Thus, the correct answer is Option A.