THIS EQUILIBRIUM INCLUDES 2 OR MORE OBJECTS IN WHICH THE TEMPERATURE MAY BE SAME OR MAY NOT BE,WHEN SOME MEDIUM IS GIVEN IN BETWEEN THEM AND THE TEMPERATURE FLOWS FROM ONE OBJECT TO ANOTHER WHEN THEIR TEMPERATURES BECOME SAME AND NO TEMPERATURE FLOWS INBETWEEN THEM IT IS KNOWN AS THERMAL EQUILIBRIUM.IN THE THERMAL EQUILIBRIUM NO TEMPERATURE FLOWS FROM ONE OBJECT TO ANOTHER.THERMAL EQUILIBRIUM, THAT'S MEANING IS EQUAL. MEANS THE OBJECT HAVE EQUAL TEMPERATURE. IT IS THE ANSWER