Question

which physical quantity is used to indicate the conductivity of heat through a substance?​

Answer 1

Thermal conductivity

Explanation:

Conductivity of heat means the amount of heat that a substance allows to pass through it.

It depends upon how closely the molecules are packed e.g. the conductivity is more in solids than liquids.

It is expressed by the physical quantity known as thermal conductivity. It's co- efficient has units , λ (or k, W m−1 K−1)

It is defined as the amount of heat allowed to pass through a material in unit time, over a unit area in a unit of temperature

learn more about thermal conductivity from the link below

https://brainly.ph/question/669527

Answer 2

Answer:

Thermal Conductivity is your answer mate...