Factors Affecting the Value of Keq: Changes to the Equation The equilibrium constant for the reaction is 4.17 X 10^-34. 2 HCl (g) ? H2(g) + Cl2(g) What is the equilibrium constant for the following reaction at the same temperature? H2(g) + Cl2(g) ? 2 HCl (g) Keq =
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