A solute X, when dissolved in water, reduces the surface tension of water. Which statement is wrong with respect to this solute?
- a The concentration of solute at the surface of solution is more than that in bulk
- b The solute is considered to be adsorbed at the solution surface
- c This is a case of negative adsorption
- d The free energy of the surface gets lowered as a result of dissolution of solute
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Dear Student,
The incorrect statement is (d)
On dissolution of solute into the solvent, the molecules of solute goes into the bulk, making the surface free.
Greater the surface area, greater will be the free energy. Therefore, free energy of surface must increase as a result of dissolution of solute.
The incorrect statement is (d)
On dissolution of solute into the solvent, the molecules of solute goes into the bulk, making the surface free.
Greater the surface area, greater will be the free energy. Therefore, free energy of surface must increase as a result of dissolution of solute.