What causes the entropy to change when a solute dissolves in a solvent?A.The solute becomes conductive.B.The solute changes the vapor pressure.C.The solute becomes less ordered.D.The solute changes the enthalpy.
Question
What causes the entropy to change when a solute dissolves in a solvent?A.The solute becomes conductive.B.The solute changes the vapor pressure.C.The solute becomes less ordered.D.The solute changes the enthalpy.
Solution
The entropy changes when a solute dissolves in a solvent because the solute becomes less ordered.
Here's a step-by-step explanation:
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Entropy is a measure of disorder or randomness in a system.
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In a solid solute, the particles are arranged in a highly ordered, structured manner.
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When the solute dissolves in a solvent, the structured arrangement of the solute particles is disrupted as they spread out and mix with the solvent particles.
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This increase in randomness or disorder is an increase in entropy.
So, the correct answer is C. The solute becomes less ordered.
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