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What are the similarities betwwen physisorption …

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What are the similarities betwwen physisorption and chemisorption

Posted by Shraddha Verma 3 years, 6 months ago

CBSE > Class 12 > Chemistry

2 answers

Giri Prasanth 3 years, 6 months ago

1) Bothh physisorption and chemisaoption are surface phenomenon. 2) Both are directly proportional to surface area. 3) Both are exothermic.

Aayush Raj 3 years, 6 months ago

Physisorption Chemisorption 1. Physisorption is non- specific in nature. It involves Waal’s interaction between adsorbate and adsorbent.1. Chemisorption is highly specific in nature as it involves chemical bond formation between adsorbate and adsorbent. 2. On increasing the temperature physisorption decreases.2. On increasing the temperature chemisorption increases. 3. Physisorption is reversible in nature.3. Chemisorption is irreversible in nature. 4. In the case of physisorption, the enthalpy change is small. 4. In the case of chemisorption, the enthalpy change is high. One similarity between physisorption and chemisorption both increases with increase in surface area.

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