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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` c`m^3`. Density of surface sites is `6.023 × 10^14//(cm^2)` and surface area is `1000` c`m^2`, calculate the number of surface sites occupied per molecule of `N_2`.
JEE 2005 Mains
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