Question

Adsorption of a gas on solid metal surface is spontaneous and exothermic, then :

A

increases

B

increases

C

increases

D

decreases

Medium
Solution
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Correct option is D)

Adsorption of a gas on solid metal surface is spontaneous and exothermic, then decreases.
Since for spontaneous and exothermic process, at all temperatures.

Therefore, from should be .

Also, adsorption of gas on solid surface gives more orderly arrangement.

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