Question

what is thermal equilibrium?​

Answer 1

Answer:

Heat is the flow of energy from a high temperature to a low temperature. When these temperatures balance out, heat stops flowing, then the system (or set of systems) is said to be in thermal equilibrium. Thermal equilibrium also implies that there's no matter flowing into or out of the system.

Explanation:

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Answer 2

Answer:

when there is no heat exchange between two systems , then the system is in thermal equilibrium. Or we can say when pressure , volume , temperature , mass and no. of moles of a system is constant.