At 35ºC, the Equilibrium Constant for the Reaction 2NOCl(g) $\rightleftharpoons$ 2NO(g) + Cl₂(g) Is K_c = 1

question 103

Multiple Choice

At 35ºC, the equilibrium constant for the reaction 2NOCl(g) $\rightleftharpoons$ 2NO(g) + Cl₂(g) is K_c = 1.6 * 10^-5. An equilibrium mixture was found to have the following concentrations of Cl₂ and NOCl: [Cl₂] = 1.2 * 10^-2 M; [NOCl] = 2.8 * 10^-1 M. Calculate the concentration of NO(g) at equilibrium.

• A) 1.0 * 10^-4 M
• B) 1.0 * 10^-2 M
• C) 2.8 * 10^-1 M
• D) 2.4 * 10^-2 M
• E) 1.6 * 10^-3 M

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