Colligative properties- page 1 lecture 4: colligative properties • by definition a colligative property is a solution property (a property of mixtures) for which it is the amount of solute dissolved in the solvent matters but the kind of solute does not matter. The colligative properties really depend on the escaping tendency of solvent molecules from the liquid phase you will recall that the vapor pressure is a direct measure of escaping tendency, so we can use these terms more or less interchangeably.
In chemistry, colligative properties are properties of solutions that depend on the ratio of the number of solute particles to the number of solvent molecules in a solution, and not on the nature of the chemical species present the number ratio can be related to the various units for concentration of solutions. Colligative properties properties of solutions that depend upon the ratio of the number of solute particles to the number of solvent molecules in a solution colligative properties include: 1 relative lowering of vapor pressure 2 elevation of boiling point 3 depression of freezing point 4.
Problem how can the understanding of colligative properties be applied to making ice cream hypothesis adding salt to the water lowers its freezing point (freezing point depression, which is a colligative property) the water will now stay liquid at lower temperatures, which is required to make ice cream procedures 1.
Colligative properties are all dependent upon the molality (m) of a solution molality is defined as moles of solute/kg of solvent the more, or less, of a solute that is present in ratio with the solvent will affect the calculations of the four colligative properties outlined above. The final colligative property is osmotic pressure osmosis is the process by which water flows from an area of high concentration to an area of low concentration this property is a critical component of body fluids because it will determine how much water flows into or out of cells.
You determine colligative properties by making measurements vapour pressure lowering the vapor pressure lowering #δp# relative to that of pure solvent a is #δp = p_a - p# boiling point elevation to determine the boiling point, you use an apparatus like the one shown below. Thus, making the mass of the egg smaller this series of experiments takes a closer look at the colligative properties, specifically the freezing point depression and the osmotic pressure colligative properties is where the concentration of solute particles in a solution is what is important and not necessarily the chemical identity of the solute. Colligative properties of solutions are properties that depend upon the concentration of solute molecules or ions, but not upon the identity of the solute colligative properties include vapor pressure lowering, boiling point elevation, freezing point depression, and osmotic pressure.
Colligative properties are properties of solutions that depend on the number of particles in a volume of solvent (the concentration) and not on the mass or identity of the solute particles colligative properties are also affected by temperature calculation of the properties only works perfectly. Within the early stages of making ice cream, specifically the first freezing, you can see the colligative properties come into play ice crystals begin to form when the mixture is cooled but the mixture freezes below o degrees celsius.