What is Thermodynamic equilibrium explain with example?

Thermodynamic equilibrium refers to a state in which a system's macroscopic properties, such as temperature, pressure, and chemical potential, are uniform throughout and do not change over time. This occurs when there are no net flows of matter or energy within the system or between the system and its surroundings. For example, a cup of hot coffee left in a cooler room will eventually reach thermal equilibrium with the surrounding air when both the coffee and air reach the same temperature. At this point, there is no heat transfer occurring between the coffee and the air.