Final answer:
The tendency of a substance to evaporate is measured by its vapor pressure, making the correct answer D. Vapor Pressure.
Step-by-step explanation:
The measure of a substance's tendency to evaporate is known as its vapor pressure. A higher vapor pressure indicates that a substance more readily evaporates, as it has molecules that can escape the liquid phase into the gas phase at a given temperature. Therefore, the correct answer to the question is D. Vapor Pressure. This is different from the boiling point, which is the temperature at which the vapor pressure equals the ambient atmospheric pressure, and from solubility, which pertains to how much of a substance can dissolve in a solvent at a specific temperature and pressure.
The measure of a substance's tendency to evaporate is its Vapor pressure.
The measure of a substance's tendency to evaporate is its Vapor pressure. The vapor pressure of a substance is the pressure exerted by its vapor when it is in equilibrium with its liquid phase at a specific temperature.