SI unit of thermal conductivity is

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:

\(k=\frac{Q\times L}{A(T_{2}-T_{1})}\)

Where,

  • k is the thermal conductivity
  • Q is heat flow
  • A is the surface area of the material
  • T2 – T1 is the temperature gradient

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