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Adsorption of gases on solid surface is exothermic because
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Adsorption decreases the surface energy
When a gas is adsorbed on the surface, the freedom of movement of its molecules becomes restricted. This causes a decrease in the entropy of the gas after adsorption, i.e, ΔS becomes negative.
When a gas is adsorbed on the surface, the freedom of movement of its molecules becomes restricted. This causes a decrease in the entropy of the gas after adsorption, i.e, ΔS becomes negative.
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Question Text | Adsorption of gases on solid surface is exothermic because
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Updated On | May 25, 2023 |
Topic | Surface Chemistry |
Subject | Chemistry |
Class | Class 12 |
Answer Type | Text solution:1 Video solution: 3 |
Upvotes | 273 |
Avg. Video Duration | 12 min |