The SI unit of thermal conductivity is Watt per metre Kelvin.
The dimensional formula of thermal conductivity is M1L1T-2θ-1.
Thermal conductivity is defined as the ability of a material to transfer the heat. Following is the formula of thermal conductivity:
- k is the thermal conductivity
- Q is heat flow
- A is the surface area of the material
- T2 – T1 is the temperature gradient