Final answer:
The special term for dynamic equilibrium involving water molecules is equilibrium vapor pressure. When a nonvolatile solute like glucose is added to water, the rate of water molecule evaporation decreases, leading to a lower vapor pressure.
Step-by-step explanation:
The special term for dynamic equilibrium involving water molecules is equilibrium vapor pressure. In a closed container, water molecules move into and out of the liquid phase at the same rate in a dynamic equilibrium. If a nonvolatile solute such as glucose is added to the water, the rate at which water molecules evaporate is decreased, while their rate of condensation remains unchanged. This leads to a lower concentration of water molecules in the vapor phase, resulting in a lower vapor pressure compared to pure water.