Colligative Properties Flashcards
(14 cards)
properties that depend only on the number of solute particles in solution and not on the
nature of the solute particles
colligative properties
What are the 4 types of colligative properties?
vapor-pressure lowering
boiling-point elevation
freezing-point depression
osmotic pressure
the pressure exerted by the gas in equilibrium with a solid or liquid in a closed container at a given temperature
vapor pressure
the tendency of particles to escape from the liquid (or solid)
vapor pressure
If a solute is _________ (that is, it does not have a measurable vapor pressure), the vapor pressure of its solution is always __________ that of the pure solvent.
nonvolatile, less than
the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid
boiling point
When a _________ solute is dissolved in a solvent, the boiling point of the solution ____________.
non-volatile, increases
the temperature at which the vapor pressure of a liquid equals the pressure surrounding the liquid
freezing point
The freezing point of a solution is _______ than that of the pure solvent.
lower
the pressure required to stop solvent molecules from moving through a semipermeable membrane into a solution
with a higher concentration of solute
osmotic pressure
Osmotic pressure is __________ proportional to the
concentration of solution.
directly
are substances that produce ions when dissolved in a solvent
Electrolytes
are substances that cannot produce ions when dissolved in a solvent
Nonelectrolytes
represents the number of particles a solute dissociates into when dissolved in a solution
Vanโt Hoff factor (๐)