What type of adsorption is characterized by a low heat of adsorption, typically

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Question: What type of adsorption is characterized by a low heat of adsorption, typically less than 40 kJ/mol? (2023)

Options:

Correct Answer: Physisorption

Exam Year: 2023

Solution:

Physisorption is characterized by a low heat of adsorption, typically less than 40 kJ/mol, due to weak van der Waals forces.

What type of adsorption is characterized by a low heat of adsorption, typically less than 40 kJ/mol? (2023)

What type of adsorption is characterized by a low heat of adsorption, typically less than 40 kJ/mol? (2023)

Step 1: Understand what adsorption means. Adsorption is when molecules stick to a surface.
Step 2: Learn about the two main types of adsorption: physisorption and chemisorption.
Step 3: Know that physisorption involves weak forces, while chemisorption involves stronger chemical bonds.
Step 4: Remember that physisorption has a low heat of adsorption, which is less than 40 kJ/mol.
Step 5: Recognize that the weak forces in physisorption are called van der Waals forces.

No concepts available.