With increase in temperature, the thermal conductivity of steel
A)Increases
B)Decreases
C)Remains unchanged
D)Increases exponentially

Question

Quizplus · Accepted Answer

The thermal conductivity of metals, including steel, generally decreases with an increase in temperature. This is because, at higher temperatures, the increased vibration of the atoms in the metal lattice scatters the free electrons more, which in turn reduces the material's ability to conduct heat.

With Increase in Temperature, the Thermal Conductivity of Steel