Why is entropy of a solution higher than that of pure liquid?
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Liquids have much lower entropies and solids lower still. Solutions have a greater entropy than pure liquids as the particles in a solution are more separated and solvent molecules separate the solute particles. ... A process where a solid changes to a liquidor gas or a liquid changes to a gas.
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The term entropy in chemistry refers to molecular randomness or their tendency to spread out or in other words molecular disorderliness. This is a thermodynamic property.
A pure liquid is made of only one type of molecules which are spread out in the liquid phase. In the case of a solution which is a product of solute and solvent, molecules of both the solute and the solvent are present. Solute molecules are spread out among solvent molecules as the later separates the solute particles. This makes the solution to have higher entropy than pure liquid.
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