The thermal diffusivities for gases are generally
A)more than those for liquids
B)less than those for liquids
C)more than those for solids
D)dependent on the viscosity
E)same as for the liquids.

Question

Quizplus · Accepted Answer

Thermal diffusivity is a measure of how quickly heat can diffuse through a material. Gases have a higher thermal diffusivity than liquids because the molecules in a gas are more spread out and can move more freely.

The Thermal Diffusivities for Gases Are Generally