Question:

Which of the following relation is correct? (i) xm= \frac{x}{m} = constant (at high pressure) (ii) xm= \frac{x}{m} = constant ×p1/n \times\, p^{1/n} (at intermediate pressure) (iii) xm= \frac{x}{m} = constant ×pn \times \,p^n (at lower pressure)

Updated On: Jun 14, 2022
  • All are correct
  • All are wrong
  • (i) and (ii) are correct
  • (iii) is correct
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The Correct Option is C

Solution and Explanation

At lower pressure, the graph is nearly straight and sloping, i.e.,
xmp1\frac{x}{m} \propto p^1
or xm=\frac{x}{m} = constant ×p1\times p^1
At high pressure, xm\frac{x}{m} becomes independent of value of pressure.
xmp0\frac{x}{m} \propto p^0
or xm=\frac{x}{m} = constant
In the intermediate range of pressure, xm\frac{x}{m} will depend on pp raised to powers between 11 and 00, i.e., fractions.
xmp1n\frac{x}{m} \propto p^{\frac{1}{n}}
or xm=\frac{x}{m} = constant ×p1n\times p^{\frac{1}{n}}
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The study of the chemical phenomena that occur at the interface of two surfaces which can be solid-liquid, solid-gas, solid-vacuum, liquid-gas, etc. 

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Adsorption:

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Two types of adsorption are:-

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The type of technique used in order to purify the substances to separate Solids from liquids is known as crystallisation.

Heterogeneous Catalysis:

The process wherein a catalyst is used in order to increase the rate of a chemical reaction is known as catalysis. The catalyst does not undergo any transformation and can be recovered in a chemically unchanged state. 

There are two types of catalysis:-

  • When the catalyst involved and the reacting substances are same states of matter or in the same phase, it is known as Homogeneous Catalysis.
  • When the catalyst involved and the reacting substances are in different states of matter or different phases, it is known as Heterogeneous Catalysis.