What is meant by thermal equilibrium
Answers
Answer:
The state of two bodies at a same temperature in which there is no net flow of heat energy between them is referred as the state of thermal equilibrium.
Flow of heat energy continuously from one body to another till all the the bodies attain the same temperature and thus this temperature is known as the equilibrium temperature.
Answer:
meant by the expression "two systems are in
thermal equilibrium"? (2 marks)
Ans. A system is in a state of thermal equilibrium if there
is no transfer of heat (energy) between the various
parts of the system or between the system and its
surroundings.
Two systems are said to be in thermal equilib-
rium when they are in thermodynamic states such
that, if they are separated by a diathermic (heat
conducting) wall, the combined system would be in
thermal equilibrium, ie., there would be no net
transfer of heat (energy) between them.
[Note: It is the energy in transfer that is called thee
heat]