JEE · NEET Previous Year Question
Which one of the following is correct for the adsorption of a gas at a given temperature on a solid surface?
Topic: JEE PYQ
Answer: C. Full step-by-step solution below.
- AΔH > 0,ΔS > 0
- BΔH > 0,ΔS < 0
- CΔH < 0,ΔS < 0
- DΔH < 0,ΔS > 0
Correct answer: C
Solution
(c)(i) Adsorption of gas at metal surface is an exothermic process so
(ii) As the adsorption of gas on metal surface reduces the free movement of gas molecules thus restricting itsrandomness hences
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