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In a vessel O(2) gas molecules were adso...

In a vessel `O_(2)` gas molecules were adsorbed on solid surface causing its partial pressure to decrease from 1 atm to 0.5 atm.
Given : `N_(A) = 6 xx 10^(23)`, Volume of vessel = 2.24 L Temperature = 273 K, Total area of solid surface `= 10^(2) cm^(2)`
Number of active sites per unit area `=10^(24) m^(-2)` Find number of `O_(2)` molecules adsorbed per active site.

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