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The unit of Thermal Conductivity of a material is
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- W/(mK)
- W/(m²K)
- m K/W
- m² K/W
Correct Option: A
W /(mK) (Watt per meter per Kelvin)
k- Thermal Conductivity
Thermal conductivity is the time rate of steady state heat flow through a unit area of a homogeneous material induced by a unit temperature gradient in a direction perpendicular to that unit area, W/mK.
| k = q |  |  | ||
| T |
Where,
L - Thickness of the specimen (m)
T - Temperature (K)
q - Heat flow rate (W/m²)
Thermal conductance is the time rate of steady state heat flow through a unit area of a material or construction induced by a unit temperature difference between the body surfaces, in W/m² .K.
