How would you calculate the value of #K_p# for the equation #C(s) + CO_2(g) leftrightarrow 2CO(g)#? Chemistry Chemical Equilibrium Equilibrium Constants 1 Answer anor277 Sep 4, 2016 For #C(s) + CO_2(g) rightleftharpoons 2CO#; #K_p=p_"carbon monoxide"^2/(p_"carbon dioxide")# Explanation: And thus #K_p# is simply the quotient of the partial pressures, modified by their stoichiometric coefficient. Carbon does not appear in the expression as a solid does not exert a partial pressure, nor does it express a concentration in #K_c#. Answer link Related questions How does the equilibrium constant change with temperature? How do you find equilibrium constant for a reversable reaction? Question #a90d2 What is the equilibrium constant for the reaction of NH3 with water? What is the equation for finding the equilibrium constant for a chemical reaction? What is the equilibrium constant for the weak acid KHP? Consider this equilibrium: I2(s) + H2O(l) ⇌ H+(aq) + I-(aq) + HOI(aq). What is the Keq... What is the equilibrium constant for water? What is the equilibrium constant of citric acid? What is the rate of production of reactants compared with the rate of production of products at... See all questions in Equilibrium Constants Impact of this question 1238 views around the world You can reuse this answer Creative Commons License