1.0 mol each of A and B are placed in a 1.0 L vessel and react: . At equilibrium 0.80 mol of C is present. What is ?
Answer and explanation
Correct answer: B. 1.78
- Step 1: 0.80 mol of C needs 0.40 mol each of A and B, so mol/L. Step 2. . Answer: 1.78. Why not the others: 1.33 forgets to square [C]; 0.56 inverts K; 2.67 uses 0.40 mol/L for [B].
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