Chapter 21, Problem 21.80QP

Interpretation Introduction

Interpretation:

The electrical conductance of copper metal decreases with temperature, but that of a ${\text{CuSO}}_{\text{4}}$ solution increases with temperature has to be explained.

Concept introduction:

Electrical conductivity of metals:

• Electrical conductivity of metal is nothing but the moment of electrically charged particles or electrons.
• In metals, the atoms are characterized in the presence of valence electrons.
• The mobility of these valence electrons form one end to another end in a metal will generates electricity.  This is called electrical conductivity in metals.

Metals:

• A metal is a material in the form of an element, compound, or in the form of alloy and which is basically hard when it is in solid state.
• Metals are good conductors and shows electrical conductiviy and thermal conductivity.
• Due to electron delocalization in conduction band metals shows electrical property.
• Metals have wide range of applications in industries and our daily life.