Chemistry | TS EAMCET 2017 | Discussion Page

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Which of the following is true for spontaneous adsorption of $H_{2}$ gas without dissociation on a solid surface

A) Process is exothermic and

$\triangle S <0$

B) Process is endothermic and

$\triangle S >0$

C) Process is exothermic and

$\triangle S >0$

D) Process is endothermic and

$\triangle S <0$

Option A

Adsorption of $H_{2}$ gas on a solid surface is exothermic and entropy decreases in the process

$\triangle S <0$

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