conductivity of electrolyte solutions decreases in the solid phase with increasing temperature due to increased vibrational motion of water molecules, as has been proposed for vibration of atoms in solid wires. It is held in physics that rigid solids conduct better than agitated warmed solids. On the other hand, for the liquid phase, a commonly held notion in chemistry is that temperature increases in conductivity are caused by increased motion of molecules. As for solids, this interpretation appears unlikely in liquids since no signicant increase in conductivity was detected for the electrolyte solutions as melting progressed to form increased proportions of liquid to solid phases at a xed temperature.
Question
conductivity of electrolyte solutions decreases in the solid phase with increasing temperature due to increased vibrational motion of water molecules, as has been proposed for vibration of atoms in solid wires. It is held in physics that rigid solids conduct better than agitated warmed solids. On the other hand, for the liquid phase, a commonly held notion in chemistry is that temperature increases in conductivity are caused by increased motion of molecules. As for solids, this interpretation appears unlikely in liquids since no signicant increase in conductivity was detected for the electrolyte solutions as melting progressed to form increased proportions of liquid to solid phases at a xed temperature.
Solution
The text you provided discusses the conductivity of electrolyte solutions in both solid and liquid phases, and how temperature affects this conductivity. In the solid phase, it's suggested that conductivity decreases with increasing temperature due to the increased vibrational motion of water molecules. This is similar to the concept in physics that rigid solids conduct better than agitated, warmed solids.
However, in the liquid phase, the common belief in chemistry is that conductivity increases with temperature due to increased molecular motion. The text suggests that this interpretation may not apply to liquids, as no significant increase in conductivity was observed as the electrolyte solutions melted to form increased proportions of liquid to solid phases at a fixed temperature.
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