Thermal conductivity of a solid is a measure of the ability of the solid to conduct heat through it. Explore about thermal conductivity , learn how to derive its equation, Know about its units and dimensions. Thermal conductivity is a property of materials that shows that heat can flow easily through the material . It is usually represented by the symbol 'k', but can also be represented by 'λ' and 'κ'. Learn what thermal conductivity is, how to calculate it, and how it varies for different materials. Find out the factors that affect thermal conductivity and its applications in various fields. The thermal conductivity of a material (designated as k) is the measure of how quickly heat energy is transferred or conducted from one end of the material to the other end. In this post we will work on the derivation of the thermal conductivity formula first, then we will find the dimension of thermal conductivity as well.