Which of the following statements correctly distinguish chemical adsorption (chemisorption) from phy — Surface Chemistry Chemistry Question

💡 Solution & Explanation

Statement A is correct as chemisorption requires chemical bond formation. Statement B correctly contrasts the heat of adsorption ranges. Statement C is completely backward: physisorption is reversible and forms multilayers, whereas chemisorption is irreversible and strictly forms a unimolecular layer. Statement D accurately describes the respective adsorption isobars due to the activation energy required for chemisorption.