Concept explainers
Interpretation:
The validation corresponding to the fact that data of carbon monoxide coverage and pressure follows a Langmuir isotherm is to be stated. The equilibrium constant for the adsorption process is to be stated.
Concept introduction:
The isotherm model that describes the adsorption process, if an adsorbate acts as an ideal gas at the isothermal situation is known as Langmuir adsorption isotherm model. In the given isothermal situation, the partial pressure of the adsorbate is related to the volume of the adsorbate which is adsorbed on the solid adsorbent.
Answer to Problem 22.47E
The occurrence of the linear straight line between
The equilibrium constant for the adsorption process is
Explanation of Solution
The given temperature is
The given data of carbon monoxide coverage and pressure in torr is mentioned in the table below.
Coverage | Pressure (torr) |
The concentration of carbon monoxide is calculated by the formula given below.
Where,
•
•
•
•
•
•
The value of universal gas constant is
Pressure | Coverage | |||
The graph between
Figure 1
As, the plot between
The value of slope is predicted as
The value of equilibrium constant is calculated by the expression given below.
Substitute the value of slope in the above expression.
Therefore, the value of equilibrium constant is
The given data of carbon monoxide coverage and pressure follows a Langmuir isotherm.
The equilibrium constant for the adsorption process is
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Chapter 22 Solutions
Physical Chemistry
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