1.

AT STP the volume of nitrogen gas required to cover a sample of silica gel, assuming Langmuir monolayer adsorption, is found to be 1.3^30^1of the gel. The area occupied by a nitrogen molecule is 0.1 0^2What is the surface area per gram of silica gel? [GivenN_A =6 diamond ^2]

Answer»

`5.5^2 6^1`
`3.4^2 8^1`
`1.6^2 1^7`
None of these

Solution :Number of molecules PER gram of `N_2` in monolayer
=`600^(23)
22,400
Cross-sectional area of a MOLECULE =`10^15`
Area covered by molecules per gram =313113
\ surface area =`5.5^2 6`


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