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Here's your answer:-
In metals the conductivity is due to flow of electrons,if you increase the temperature,the kinetic energy of electrons increases due to this,they disturb the flow of electrons and thus the conductivity decreases.
In case of electrolytes,the conductivity is due to the flow of ions if we increase the temperature,the dissociation of electrolytes increases,thus the conductivity increases.
Hope it helps.
Here's your answer:-
In metals the conductivity is due to flow of electrons,if you increase the temperature,the kinetic energy of electrons increases due to this,they disturb the flow of electrons and thus the conductivity decreases.
In case of electrolytes,the conductivity is due to the flow of ions if we increase the temperature,the dissociation of electrolytes increases,thus the conductivity increases.
Hope it helps.
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Metals:-
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As the temperature increases the molecular vibrations increase (in turn decreasing the mean free path of molecule). So, they obstruct the flow of free electrons, thus the conductivity of metal decreases with increase in temperature.
Electrolytes:-
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As the temperature increases the ions are in a higher energy state. This energy will be converted into kinetic energy and so, they the mobility decreases. Hence the conductivity of electrolytes increases with increase in temperature.
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As the temperature increases the molecular vibrations increase (in turn decreasing the mean free path of molecule). So, they obstruct the flow of free electrons, thus the conductivity of metal decreases with increase in temperature.
Electrolytes:-
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As the temperature increases the ions are in a higher energy state. This energy will be converted into kinetic energy and so, they the mobility decreases. Hence the conductivity of electrolytes increases with increase in temperature.
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