Thermal diffusivity is least for
A)Mercury
B)Rubber
C)Lead
D)Iron
E)Aluminium

Question

Quizplus · Accepted Answer

Thermal diffusivity is a measure of how quickly a material can conduct thermal energy relative to its ability to store thermal energy. It is defined as thermal conductivity divided by density and specific heat capacity. Rubber, being a poor conductor of heat compared to metals like mercury, lead, iron, and aluminum, has the least thermal diffusivity among the options given. This is because rubber's ability to conduct heat is much lower than that of metals, making it slower to adjust its temperature in response to a thermal gradient.

Thermal Diffusivity Is Least for