Distinguish between an adiabatic wall and diathermic wall.

Monjur Alahi

Distinguish between an adiabatic wall and diathermic wall.


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Salim Ahmed Kawsar

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Adiabatic wall Diathermic wall
i. An ideal wall or partition separating two systems such that no heat exchange can take place between the systems is called adiabatic wall. A wall that allows exchange of heat energy between two systems is said to be diathermic wall.
ii. It is a perfect thermal insulator. It is not a perfect thermal insulator.
iii. It does not exist in reality. Partition like thin sheet of copper acts as diathermic wall.
iv. It is generally represented as thick cross-shaded (slanting lines region). It is represented as a thin dark region.

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