For N2O4 <=> 2NO2, the equilibrium concentrations are [N2O4] = 0.040 and [NO2] = 0.080 mol dm-3. What is Kc?

Answer and explanation

Correct answer: B. 0.16 mol dm-3

  1. Step 1: . Step 2. . Answer: 0.16 mol dm-3. Why not the others: 2.0 uses 0.080/0.040 without squaring; 0.0064 forgets to divide; 0.080 is the concentration of NO2.

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