The equilibrium constant for the reaction has a value of K_c = 1.23 at a certain temperature. What is the value of K_c for the reaction:

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To find the equilibrium constant for the new reaction, we need to use the equation: K_c = [11ec6ef7_e7f_c0af_8fe2_4f2e4f788d7b_TB5061_00] / [11ec6ef7_db93_3d5e_8fe2_af2887898144_TB5061_00] We don't know the concentrations of the products and reactants for the new reaction, but we do know that it is the reverse reaction of the original equation. This means we can use the inverse of the original equilibrium constant: K_c (reverse) = 1 / K_c (original) Substituting in the original equilibrium constant of 1.23 gives: K_c (reverse) = 1 / 1.23 = 0.81 However, this is the equilibrium constant for the reverse reaction, so we need to use the equation: K_c = 1 / K_c (reverse) Substituting in 0.81 gives: K_c = 1 / 0.81 = 1.23 / 0.81 = 1.52 Therefore, the answer is C) 0.66.

The Equilibrium Constant for the Reaction Has a Value