when does vapour pressure equilibrium happen
Answer (1)
rium occurs when the rate of evaporation of a liquid equals the rate of condensation of its vapor. This dynamic equilibrium results in a constant vapor pressure at a given temperature. Essentially, the amount of liquid and vapor in the container remains constant. Elaboration:Dynamic Equilibrium:Vapour pressure equilibrium is a dynamic process, meaning that both evaporation and condensation are happening simultaneously, but at the same rate. Constant Vapor Pressure:At a constant temperature, the vapor pressure remains constant because the rate of evaporation and condensation are balanced. Closed System:Vapour pressure equilibrium is typically observed in closed systems, where the vapor molecules cannot escape and are confined within the container. Example:Think of a sealed container of water. Initially, more water molecules will evaporate than condense. However, as the vapor pressure increases, more vapor molecules will condense back into liquid. Eventually, the rates of evaporation and condensation will become equal, establishing the equilibrium.
