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Derive the mathematical expression or show the relationship between the extent of a adsorption of a gas on the surface of a solid (with lower and higher ranges of pressure). Calculate the extent of adsorption at one atmosphere. |
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Answer» Solution :`(x)/(m) PROP P^(1)` at low pressure , where.x. is mass of ADSORBATE and .m. is mass of adsorbent . `x/m prop P_0`at high pressure . `x/m prop P^(1//n)` at moderate pressure , where `1/n` lies between 0 and 1 . Mathematically, it can be represented as : `x/m=kP^(1//n)` At 1 atm ,` x/m = k(1)^(1//n)` or `x/m=k` At 1 atm EXTENT of adsorption is EQUAL to .k. ( constant). 
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