👉 Exchanges fluid, often referred to as a "fluid exchange," is a term used in chemistry and biology to describe the continuous and dynamic process of gas and liquid molecules moving between two phases, typically a gas and a liquid. In this process, molecules from the gas phase diffuse into the liquid phase, while those from the liquid phase diffuse out into the gas phase. This exchange is driven by concentration gradients and occurs at the interface between the two phases, maintaining equilibrium. For example, in a beaker of water with an air bubble, oxygen from the atmosphere continuously dissolves into the water, while water vapor escapes into the air, illustrating a fluid exchange that sustains the system's balance.
