Question

What is thermal equilibrium?

Answer 1

two substances in thermal equilibrium are said to be in the same temperature.

Step-by-step explanation:

this is when two substances in physical contact with each other exchange no heat energy

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Answer 2

Thermal Equilibrium is the condition under which 2 substances in physical contact with each other exchange heat energy. the 2 substances in Thermal Equilibrium are said to be the same temperature.