The decomposition of NH₃ on platinum surface is zero order reaction. If k = 2.5 × 10⁻⁴ mol L⁻¹s⁻¹ the rate of production
7.5 × 10⁻⁴ mol L⁻¹s⁻¹ correct as per chemistry principle.
Ref: NCERT Chemistry Class XI and XII
#NH3 decomposition
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