1. What are the 3 important colligative properties discussed in class, give their applications.
Colligative properties are the properties of solutions that depends on the number of solute particles rather than the narure of solute particles. The word colligative properties which comes from the Lattin word called "Colligates which means bounds together".Thus colligative properties changes with change in number of solute particles. If molecular association is present then number of solute particles decreases whereas for molecular dissociation number of solute particles increases. Thus colligative properties influence the properties of solution in many ways. There are four types of colligative properties
1)Relative lowering of vapour pressure:
In this case the vapour pressure of pure solvent is decreasing if we are adding a non volatile solute particles in to it. That is vapour pressure of the solution is always is lower than pure solvent. The relative lowering of this vapour pressure depends only on the mole fraction of solute particles.
One daily life example to relative lowering of vapour pressure is we are putting some antifreeze material to the radiator of our car inorder to reduce the overheating. The vapour pressure thus decreases and which leads to decrease the temperature of radiator.
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