At 35ºC, the Equilibrium Constant for the Reaction 2NOCl(g)

question 97

Multiple Choice

At 35ºC, the equilibrium constant for the reaction 2NOCl(g) 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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