- #1
Dhananjay Singh
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In context of heat transfer, are conduction and diffusion same process?
High School Conduction and Diffusion: Two Sides of Heat Transfer?
- Thread starter Dhananjay Singh
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Conduction and diffusion are distinct processes in heat transfer. Conduction occurs through direct contact between materials, while diffusion refers to the spreading of heat across a volume, potentially involving conduction, convection, or radiation. Thermal conductivity and thermal diffusivity are related but separate properties that describe how heat moves through materials. The discussion clarifies that while both processes involve heat transfer, they operate under different mechanisms and definitions. Understanding these differences is crucial for studying heat transfer effectively.
- #2
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Are you asking about the physical properties Thermal Conductivity and Thermal Diffusivity?
- #3
Dhananjay Singh
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No, I know thermal conductivity and thermal diffusivity are different physical properties. Thermal diffusivity is the ratio of thermal conductivity of material to the product of its density & specific heat capacity. I want to know about the difference in the process (at microscopic level) and definition of Conduction & Diffusion.Chestermiller said:
- #4
Monsterboy
- 304
- 96
Diffusion of heat usually means spreading of heat to a wider volume either through any or all of heat transfer mechanisms i.e conduction, convection or radiation.Dhananjay Singh said:
Conduction is one of the three mechanisms of heat transfer that happens through static physical contact between two or more bodies.
- #5
Dhananjay Singh
- 3
- 0
thank you for the most reasonable answer. 
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