Answer:
equilibrium
Step-by-step explanation:
When two objects in physical contact with each other exchange thermal energy until the temperatures of both are the same, they are said to be at Equilibrium.
Equilibrium can be obtained through radiation, conduction, convection and evaporation. Radiation is the diffusion of heat from a warm body to relatively colder object via air. Conduction is the transfer of heat from the hotter to cooler objects when they are in contact. Convection is the movement of air resulting from local pockets of warm air being replaced by cooler air. Evaporation is when a liquid changes into vapour and latent heat of vaporization is absorbed creating an equilibrium.