State Raoult's Law of depression of freezing point. How is it useful i

1.	State Raoult's Law of depression of freezing point. How is it useful in determining the molecular weight of non-volatile and non electrolyte solute?
Answer» Raoult gave the quantitative relationship between the solutions, then the relationship is known as raoult's law which states that for a solution of volatile liquids, the partial pressure vapour pressure of each component in the solution is directly proportional to its mole fraction. Thus, for components 1. P₁ ∝ x₁ and P₁ = P₁⁰ x₁ Where P₁⁰ is the vapour pressure of pure component 1 at the same temperature. Simply, for componant 2 P₂ = P₂⁰ x₂ where P₂⁰ represents the vapour pressure of the pure component. Raoult's law in general form can be stated as, for any solution the partial vapour pressure of each volatile component in the solution is directly proportional to its mole fraction.

State Raoult's Law of depression of freezing point. How is it useful in determining the molecular weight of non-volatile and non electrolyte solute?

Answer»

Raoult gave the quantitative relationship between the solutions, then the relationship is known as raoult's law which states that for a solution of volatile liquids, the partial pressure vapour pressure of each component in the solution is directly proportional to its mole fraction.

Thus, for components 1.

P₁ ∝ x₁

and P₁ = P₁⁰ x₁

Where P₁⁰ is the vapour pressure of pure component 1 at the same temperature.

Simply, for componant 2

P₂ = P₂⁰ x₂

where P₂⁰ represents the vapour pressure of the pure component.

Raoult's law in general form can be stated as, for any solution the partial vapour pressure of each volatile component in the solution is directly proportional to its mole fraction.

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