Which of the following statement describes chemisorption?
Question
Which of the following statement describes chemisorption?
Solution
Chemisorption is a type of adsorption where a molecule or atom is adhered to a surface via a chemical bond. This process is usually exothermic, meaning it releases heat. The bond formed in chemisorption is stronger than in physisorption, another type of adsorption, because it involves the sharing or transfer of electrons. This process is highly specific and can only occur at specific sites on the surface known as active sites. It often only occurs in a monolayer, meaning a layer that is only one atom or molecule thick.
Similar Questions
Which of the following statements is not true with respect to chemisorption?a.Forms a unimolecular layerb.Has a large heat of adsorptionc.Depends on nature of adsorbate and adsorbentd.Occurs at low temperature
Which of the following can result in a transition from physisorption to chemisorption?a.Increase in surface areab.Increase in temperaturec.Decrease in pressured.Decrease in temperature
Which of the following is not a chemical change?Select an answerAsublimationBcombustionCElectrolysisDRusting
TemperaturePhysisorption decreases with increase in temperature. Chemisorption increases with increase in temperature
physisorption
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