Respuesta :
If two systems are in thermal equilibrium there will not be a net flow of energy from one system to other systems. So option a) is the right answer.
What is thermal equilibrium?
When there is no net transfer of heat energy between two physical systems connected to one another and both systems are operating at the same temperature, the systems are said to be in thermal equilibrium.
Two types of thermal equilibrium exist internal thermal equilibrium and thermal equilibrium between two thermally linked bodies.
If two bodies are thermally connected to one another, only heat will be transferred in order to maintain equilibrium matter and mass won't be moved.
Additionally, a body that is isolated from other bodies maintains its internal thermal balance since neither the outside nor the interior of the body can transfer heat.
The zeroth law of thermodynamics, which states that two bodies are in thermal equilibrium with one other if they are each in thermal equilibrium with a third body, is followed by thermal equilibrium.
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