Question

what is meant by thermal equilibrium .Please try to answer in BRIEF

Answer 1

There are some concepts in physics that people understand intuitively before they've even heard of them. Like thermal equilibrium, which is so integral to our lives that we tend to understand it by intuition.

For instance, let's say you got a hot mug of tea and put it in the freezer. What will happen to the tea? The tea will, of course, cool down. Everyone knows that. And, you also probably know the tea will keep cooling down until it is the same temperature as the freezer - until it is frozen solid and can't get any colder. Even if you are familiar with this concept, what you may not know is that it is a solid example of thermal equilibrium.

Thermal equilibrium is the state in which two objects connected by a permeable barrier don't have any heat transfer between them. This happens when the two objects have the same temperature.

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Answer 2

when an object is heat an we keep it is in environment, the environment absorbe the heat from this subsequent when the temperature of subsequent and environment is not equal. this is called thermal equilibrium.