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Which of the following is true for spont...

Which of the following is true for spontaneous adsorption of `H_2` gas without dissociation on solid surface

A

Process is exothermic and `Delta S lt 0`

B

Process is endothermic and `Delta S gt 0`

C

Process is exothermic and `Delta S gt 0`

D

Process is endothermic and `Delta S lt 0`

Text Solution

Verified by Experts

The correct Answer is:
A
Answer(1) Adsorption of gases on solid surface is always exothermic process and in this entropy decrease. `therefore` Process is exothermic and `Deltas lt 0`.
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