Q6. Surface area of a catalyst from a nitrogen monolayer
5.0 kg of a catalyst adsorbs 400 m³ of N₂ gas at 1 bar and 300 K to form a monolayer. What is the surface area of the catalyst if the area occupied per molecule of N₂ is 16 × 10⁻¹⁰ m²?
Answer in brief
With the printed area per molecule: S = 1.5 × 10¹⁹ m². With 16 × 10⁻²⁰ m² per molecule: S = 1.5 × 10⁹ m² (3.1 × 10⁸ m² kg⁻¹).
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Coverssurface area of catalystmonolayer adsorptionBET methodnitrogen adsorptioncross-sectional area