What is the difference between equilibrium and thermal equilibrium temperature.Mention few examples for each .Thanks 

Equilibrium - If two objects remain in contact for a long time, they typically come to equilibrium. An example of equilibrium is when hot air and cold air are entering the room at the same time so that the overall temperature of the room does not change at all.
Two physical systems are in thermal equilibrium if there is no net flow of thermal energy between them when they are connected by a path permeable to heat. For example when molten rock comes up from a volcano, it will give off heat to the atmosphere until the rock and the atmosphere are at the same temperature.
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