The variation of thermal conductivity of a metal with temperature is often correlated using an expression of the form K = K0 + at, where, K is the thermal conductivity and T is the temperature (in °K). The units of ‘a’ in SI system will be________________?

Question

Accepted Answer

W/m.k. The equation is K = K0 + aT. Since K has units of W/m.K and T has units of K, 'a' must have units of (W/m.K) / K, which simplifies to W/m.K^2. However, given the options and the provided correct answer A (W/m.K), there might be a misunderstanding in the question or options provided.