Question

Dimensions formula of thermal resistance

Answer 1

In the International System of Units (SI), thermal conductivity is measured in watts per meter-kelvin (W/(m⋅K)). The dimension of thermal conductivityis M1L1T−3Θ−1, expressed in terms of the dimensions mass (M), length (L), time (T), and temperature (Θ).

Answer 2

Thermal resistance is a concept borrowed from electromagnetism, based on a thermal “Ohm’s Law,” in which heat flux is analogous to current, and temperature difference is analogous to potential:

ΔT=q⋅R

Units of thermal conductivity. In the International System of Units (SI), thermal conductivity is measured in watts per meter-kelvin (W/(m⋅K)). The dimension of thermal conductivity is M1L1T−3Θ−1, expressed in terms of the dimensions mass (M), length (L), time (T), and temperature (Θ).