thermal conductivity of a gas is due to transpor of
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Answer:
- The thermal conductivity of a material is a measure of its ability to conduct heat. It is commonly denoted by k, \lambda, or \kappa. Heat transfer occurs at a lower rate in materials of low thermal conductivity than in materials of high thermal conductivity. Wikipedia
Explanation:
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Answer :
The Theory of Gas Thermal Conductivity. Thermal conductivity in gases is brought about by energy transfer by gas molecules in the same way as viscosity is related with momentum transfer and diffusion, with mass transfer. Therefore, all these phenomena appreciably depend on , that is the mean free path of molecules.
More Information :
What is thermal conductivity ?
Ans. The thermal conductivity of a material is a measure of its ability to conduct heat. It is commonly denoted by k, \lambda, or \kappa. Heat transfer occurs at a lower rate in materials of low thermal conductivity than in materials of high thermal conductivity.
What is thermal conductivity of gas?
Ans. At approximately 0.001 bar, the mean free path becomes of the same order as the walls confining the gas and the value increases linearly with pressure. Above 0.001 bar, the increase in thermal conductivity is of the order of magnitude of 1% per bar increase of pressure.