Q. In the formation of S02 by contact process;

2SO2 + O2 → 2SO3, the rate of reaction was measured as \(\frac{-d\left[\mathrm{O}_{2}\right]}{d t}\) = 2.5 × 10-4 mol L-1s-1. at

The rate of formation of of S03 will be
  • (A) -5.0 × 10-4 mol L-1s-1
  • (B) -1.25 × 10-4 mol L-1s-1
  • (C) 3.75 × 10-4 mol L-1s-1
  • (D) 5.00 × 10-4 mol L-1s-1
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✅ Correct Answer: (D) 5.00 × 10-4 mol L-1s-1

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