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Rate of disappearance of H2 = rate of formation of NH3. -1/3 d[H2]/dt = 1/2 d[NH3]/dt

1. Rate of disappearance of H2 = rate of formation of NH3.
2. -1/3 d[H2]/dt = 1/2 d[NH3]/dt
3. 3/2 × 2 × 10^-4
4. 3 × 10^-4 mol L^-1 s^-1

Correct answer: -1/3 d[H2]/dt = 1/2 d[NH3]/dt

Solution

The correct relationship between the rates of disappearance and formation is given by the stoichiometric coefficients in the balanced chemical equation for the reaction. Option B correctly represents this relationship.

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