Colligative properties are those properties that depend solely on the concentration of the solid use. They depend on the number or amount of solid particles used. They don't depend on the nature or type of particle use. Now, four major colligator properties are known vapor pressure, osmotic pressure, boiling point elevation, and melting point depression. I'm going to briefly talk about the first collage of property, vapor pressure. If you want to go into more detail about vapor pressure, check out my link below.