A Mixture Containing 0

question 78

Multiple Choice

A mixture containing 0.0392 M A(g) and 0.0452 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) 2.13 × 10^-3
• B) 0.849
• C) 20.4
• D) 4.91 × 10^-2
• E) 470

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