Question
What is thermometry conductivity or diffusivity? What does it measure?
Solution
In transient state, the rate at which the rod gets heated is not the same for all the materials.
Heating depends not on the thermal conductivity but also depends on the thermal capacity per unit volume of material.
The rate at which the temperature of any part of rod increases is called thermometric conductivity or diffusivity. Thermal conductivity is equal to the ratio of thermal conductivity to the thermal capacity per unit volume of material.
