Thermal conductivity is a material property that measures its ability to conduct heat. It is defined as the rate at which heat is transferred through a unit area of a substance, per unit temperature gradient.
Materials with high thermal conductivity efficiently conduct heat, allowing it to flow rapidly, while those with low thermal conductivity resist heat transfer.
This property is crucial in various applications, influencing the efficiency of thermal insulators and conductors, as well as impacting the design and performance of heat exchangers and electronic devices.