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Grade:
        How does adsorption affects the surface energy,,,,does it get increased or decreased and why??
8 months ago

Answers : (1)

Arun
13863 Points
							
Dear Rashmi
 

Inside adsorbent or bulk ,all the forces acting between particles are mutually balanced. But on the surface particles experiences the residual forces which is an attractive force by atoms or molecules and this force is experienced by bulk side only. This force of adsorbent are responsible for attracting the particles of adsorbate on the surface.

During this process means adsorption the residual forces on the surface decreases and thus the surface energy on the surface also decreases which appears as a heat.

This is also one of the cause that adsorption is an exothermic process i.e. enthalpy is always negative

 

 

Regards

Arun (askIITians forum expert)

8 months ago
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