Which of the following statements is incorrec | vedclass

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(C) The correct answer is $C$. Metallic conductivity (or electronic conductivity) is due to the movement of electrons through the metal lattice. As th

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The electrical conductivity of a metal increases with an increase in temperature.

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(C) The correct answer is $C$. Metallic conductivity (or electronic conductivity) is due to the movement of electrons through the metal lattice. As the temperature of a metal increases,the positive ions (kernels) in the lattice begin to vibrate more vigorously. This increased vibration causes more collisions between the moving electrons and the vibrating ions,which increases the resistance of the metal. Therefore,the electrical conductivity of a metal decreases,not increases,with an increase in temperature.

$c^{1/2} / (mol \, L^{-1})^{1/2}$	$\Lambda_m / S \, cm^2 \, mol^{-1}$
$0.000198$	$148.61$
$0.000309$	$148.29$
$0.000521$	$147.81$
$0.000989$	$147.09$

Which of the following statements is incorrect with respect to metallic or electronic conductivity?

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