For the ideal gaseous reaction , let be the equilibrium constant expressed strictly in terms of mole — Chemical Equilibrium Chemistry Question
Question
For the ideal gaseous reaction $aA(g) + bB(g) \rightleftharpoons cC(g) + dD(g)$, let $K_x$ be the equilibrium constant expressed strictly in terms of mole fractions. Which of the following equations bridges $K_p$ and $K_x$?
Answer: A
💡 Solution & Explanation
The partial pressure of a gas is its mole fraction multiplied by total pressure ($P_i = X_i P_{total}$). Substituting this into the $K_p$ expression yields $K_p = K_x(P_{total})^{\Delta n_g}$.
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