A Mixture Containing 0

question 11

Multiple Choice

A mixture containing 0.392 M A(g) and 0.452 M B(g) is allowed to come to equilibrium at 300 K. The reaction 3 A(g) + 2 B(g) ⇌ C(g) + D(g) occurs. At equilibrium, [C] = 0.00128 M. What is the value of Kc?

• A) 7.35 × 10^-3
• B) 1.39 × 10^-4
• C) 1.36 × 10²
• D) 9.24 × 10^-6
• E) 7.19 × 10⁶

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