20% surface sites have adsorbed N_2. On heating N_2 gas evolved from sites and were collected at 0.001 arm and 

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Q 1126878771.     20% surface sites have adsorbed N_2. On heating N_2 gas evolved from sites and were collected at 0.001 arm and 298 K in a container of volume is 2.46 cm^3. Density of surface sites is 6.023 × 10^14//(cm^2) and surface area is 1000 cm^2, calculate the number of surface sites occupied per molecule of N_2`.
JEE 2005 Mains

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