Question

question 8 (1 point)
which is true of the numerical value of the equilibrium constant, $k_{eq}$?
\\(\bigcirc\\) a) it represents the relative concentration of products compared with reactants.
\\(\bigcirc\\) b) it represents the ratio of reactants to products.
\\(\bigcirc\\) c) it is measured in the si unit, mole.
\\(\bigcirc\\) d) both a and c are true.
\\(\bigcirc\\) e) both b and c are true.

Explanation:

• Option a: The equilibrium constant \( K_{eq} \) is defined as the ratio of the concentrations (or partial pressures for gases) of products to reactants, each raised to their stoichiometric coefficients. So it represents the relative concentration of products compared to reactants. This is correct.
• Option b: \( K_{eq} \) is products over reactants, not reactants over products. So this is incorrect.
• Option c: The equilibrium constant is a dimensionless quantity (it has no units in most cases, especially when activities are used, and even when using concentrations, the units often cancel out). So it is not measured in moles. This is incorrect.
• Options d and e: Since b and c are incorrect, these are also incorrect.

Answer:

a) It represents the relative concentration of products compared with reactants.