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Chemistry Class XI: Unit 5 Solutions and Vapour Pressure

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What is Raoult's law?

Raoult's law states that for a solution of volatile liquids, the partial vapour pressure of each component of the solution is directly proportional to its mole fraction present in the solution.

How are the partial vapor pressures of components related to their mole fractions?

The partial vapor pressure of each component is directly proportional to its mole fraction in the solution.

Explain the relationship between the partial vapor pressure and mole fraction using an example.

The partial vapor pressure (p1) of component 1 is proportional to its mole fraction (x1) in the solution, given by p1 = p10 x1.

Who developed the quantitative relationship between partial vapor pressures and mole fractions?

<p>The French chemist, Francois Marte Raoult, developed the quantitative relationship known as Raoult's law.</p> Signup and view all the answers

How is the vapor pressure of the pure component related to the partial vapor pressure in a solution?

<p>The vapor pressure of the pure component is represented by p, and the partial vapor pressure is related through p1 = p10 x1.</p> Signup and view all the answers

What does Raoult's law state about the behavior of volatile liquid solutions?

<p>Raoult's law states that the partial vapor pressure of each component in a solution is directly proportional to its mole fraction.</p> Signup and view all the answers

How do mole fractions influence the partial vapor pressures of components according to Raoult's law?

<p>The partial vapor pressure of each component is directly proportional to its mole fraction in the solution.</p> Signup and view all the answers

Explain the significance of Raoult's law in predicting vapor pressures of solutions.

<p>Raoult's law provides a quantitative relationship that helps in predicting how the partial vapor pressures of components change with their mole fractions.</p> Signup and view all the answers

How does Raoult's law help in understanding the equilibrium between the vapor phase and liquid phase?

<p>Raoult's law explains how the partial vapor pressures of components reach equilibrium based on their mole fractions in the solution.</p> Signup and view all the answers

What is the role of mole fractions in establishing equilibrium between vapor and liquid phases?

<p>Mole fractions determine the partial vapor pressures of components, which eventually reach equilibrium between the vapor and liquid phases.</p> Signup and view all the answers

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