Unit of Thermal Conductivity

The unit of thermal conductivity is

[2019]

\(W m^{-1} K^{-1}\)

\(J m K^{-1}\)

\(J m^{-1} K^{-1}\)

\(W m K^{-1}\)

Thermal conductivity \(k\) relates heat flux to temperature gradient. So, \(k\) has units of \(W/(m \cdot K) = W m^{-1} K^{-1}\).