Question

Which of the following correctly describes an adiabatic wall?

Options

• Allows heat to pass freely

• Blocks heat transfer completely

• Conducts heat quickly

• Shown as a thin line in diagrams

Answer 1

Blocks heat transfer completely

Explanation:

An adiabatic wall is an ideal partition designed to block heat flow entirely. In diagrams, it is represented by a thick, cross-hatched (slanting lines) region, unlike a diathermic wall, which allows free heat exchange and is shown as a thin dark line.