Question

For two bodies (which are in contact with each other) to be in thermal equilibrium, they must be separated by :

• A. an insulating wall
• B. a conducting wall
• C. both A and B
• D. none of the above

Answer 1

Answer: (B)

a conducting wall

$Answer:-$ B

Two systems are said to be in the relation of thermal equilibrium if they are linked by a wall permeable only to heat(conducting wall) and they do not change over time. As a convenience of language, systems are sometimes also said to be in a relation of thermal equilibrium if they are not linked so as to be able to transfer heat to each other, but would not do so if they were connected by a wall permeable only to heat.