Transfer of Heat By Conduction and Radiation Between Systems
Heat can flow into or out of a closed system by way of thermal conduction or of thermal radiation to or from a thermal reservoir, and when this process is effecting net transfer of heat, the system's temperature can be changing, and if so, the system is not in thermal equilibrium.
Read more about this topic: Thermal Equilibrium
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And thou, O Lord, art more than they.”
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