it depends how thick the air is!
Is air a thermal insulator or thermal conductor? Read more:Is_air_a_thermal_insulator_or_thermal_conductor
it depends how thick the air is!
Air is the best thermal insulator among the options provided. Air has low thermal conductivity, meaning it is effective at trapping heat and preventing its transfer. Stone, water, and metal have higher thermal conductivities compared to air.
Air between windows is a thermal insulator.
Lots of air pockets among the threads.
One material that conducts thermal energy poorly is Styrofoam. This material has a low thermal conductivity due to its high concentration of trapped air pockets, which hinders the transfer of heat. This property makes Styrofoam a good insulator for keeping things cool or warm.
A. Still air is an example of a thermal insulator because it has low thermal conductivity, meaning it does not easily transfer heat. Gold, zinc, and lead are all metals with higher thermal conductivity and are not good insulators.
yes it is because of all the air bubbles in it
Air is the best insulator among silver, copper, iron, and air. This is because air has a lower thermal conductivity compared to the metals silver, copper, and iron. Insulators with low thermal conductivity are better at reducing heat transfer.
There is no general speed. The efficiency of the insulator can be measured by how long the heat takes to pass through.
Air is the best insulator among the options listed. It has low thermal conductivity, meaning it does not easily transfer heat. Thermocol, cotton, and aluminium are not as effective as insulators compared to air.
For practical purposes, air is an excellent thermal insulator. So any material with lots of entrained air (and through which the air cannot freely pass) will be a good thermal insulator. The remaining conduction path through the material is along the filmy walls of the bubbles, and this path will be long and of small cross-section. A vacuum is of course a better thermal insulator, but there are practical difficulties in making a foam of vacuum bubbles. And there are some materials (some CFC gases) which are better thermal insulators than air, but once again there are difficulties in keeping these gases entrained in the foam bubbles.