Which of the following statements about the units of equilibrium constants are correct? — Chemical Equilibrium Chemistry Question

💡 Solution & Explanation

The units of $K_c$ and $K_p$ depend directly on $\Delta n_g$. For $H_2 + I_2 \rightleftharpoons 2HI$, $\Delta n_g = 0$, making them unitless. The standard state thermodynamic equilibrium constant ($K_{eq}$), calculated using activities, is dimensionless by definition.