Which of the following statements is true about adsorption isotherms? (2023)

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Question: Which of the following statements is true about adsorption isotherms? (2023)

Options:

They describe the relationship between pressure and volume.
They describe the relationship between temperature and solubility.
They describe the relationship between the amount of adsorbate and its pressure at constant temperature.
They describe the relationship between concentration and reaction rate.

Correct Answer: They describe the relationship between the amount of adsorbate and its pressure at constant temperature.

Exam Year: 2023

Solution:

Adsorption isotherms illustrate how the amount of adsorbate on a solid surface varies with pressure at a constant temperature.

Which of the following statements is true about adsorption isotherms? (2023)

They describe the relationship between pressure and volume.
They describe the relationship between temperature and solubility.
They describe the relationship between the amount of adsorbate and its pressure at constant temperature.
They describe the relationship between concentration and reaction rate.

Which of the following statements is true about adsorption isotherms? (2023)

Step 1: Understand what adsorption means. It is the process where molecules stick to a surface.
Step 2: Know what an isotherm is. It is a line or curve that shows how something changes at a constant temperature.
Step 3: Combine these ideas. An adsorption isotherm shows how much of a substance (adsorbate) sticks to a surface (adsorbent) when the pressure changes, but the temperature stays the same.
Step 4: Remember that this relationship helps us understand how different conditions affect the amount of substance on the surface.

No concepts available.