1.

Which among the following statements are correct with respect to adsorption of gases on a solid ? 1. The extent of adsorption is equal to k P ^(n) according to Freundlich isotherm. 2. The extent of adsorption is equal to k P^(1//n) according to Freundlich isotherm. 3. The extent of adsorption is equal (1+b P)//aP according to Langmuir isotherm. 4. The extent of adsorption is equal to a P (1+b P) according to Langmuir isotherm. 5. Freundlich adsorption isotherm fails at low pressure.

Answer»

1 and 3
1 and 4
2 and 3
2 and 4

Solution :According to FREUNDLICH isother, `x/m=kP^(1//n)`
According to Langmuir ISOTHERM,` x/m=(aP)/(1+bp).`


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