Question

What is the SI unit of the coefficient of thermal conductivity?

• A. $J{s}^{-1}{m}^{-1}{K}^{-1}$
• B. $N{s}^{-2}{m}^{-1}{K}^{-1}$
• C. $N{s}^{-1}{m}^{-2}{K}^{-1}$
• D. $W{m}^{-1}{K}^{-1}$

Answer 1

Answer: (A), (D)

$W{m}^{-1}{K}^{-1}$

$\frac{dQ}{dt}=-KA\frac{dT}{dx}$