what i the answer here need noww
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Answer:
Yes it is. Two objects in a closed system will come into thermal equilibrium with each other if they are in thermal contact (by definition). The key element of thermal contact is that two systems are able to exchange energy in some way, so as to allow both systems to randomly sample all possible states with equal probability, subject to the total amount of energy in both objects being constant. Sometimes a bit of physics is swept under the rug here in thermodynamics, in that we usually don't specify the details of the mechanism by which systems exchange energy. A common way that two systems can exchange energy is by particles of one system colliding with particles of the other system (scattering due to electromagnetic repulsion), I will assume that when this mechanism is occurring, the two systems are "in contact".