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Question:
Vapour pressure of water at $293\, K$ is $17.535\, mm \,Hg$. The vapour pressure of water at $293 \,K$ containing $25 \,g$ of glucose dissolved in $450\, g$ of water is
Vapour pressure of water at $293\, K$ is $17.535\, mm \,Hg$. The vapour pressure of water at $293 \,K$ containing $25 \,g$ of glucose dissolved in $450\, g$ of water is
Updated On: May 12, 2024
- $17.439\, mm \,Hg$
- $17.535\, mm \,Hg$
- $0.097\, mm\, Hg$
- $34.973\, mm \,Hg$
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Solution and Explanation
$\frac{p^{\circ} -p_{s}}{p^{\circ}} = \frac{w_{2} \times M_{1} }{w_{1} \times M_{2}}$
$ \frac{17.535 - p_{s}}{17.535} = \frac{25 \times 18 }{450 \times 180} = 5.55 \times 10^{-3} p_{s} =17.437 mm Hg$
$ \frac{17.535 - p_{s}}{17.535} = \frac{25 \times 18 }{450 \times 180} = 5.55 \times 10^{-3} p_{s} =17.437 mm Hg$
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Concepts Used:
Solutions
A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.
For example, salt and sugar is a good illustration of a solution. A solution can be categorized into several components.
Types of Solutions:
The solutions can be classified into three types:
- Solid Solutions - In these solutions, the solvent is in a Solid-state.
- Liquid Solutions- In these solutions, the solvent is in a Liquid state.
- Gaseous Solutions - In these solutions, the solvent is in a Gaseous state.
On the basis of the amount of solute dissolved in a solvent, solutions are divided into the following types:
- Unsaturated Solution- A solution in which more solute can be dissolved without raising the temperature of the solution is known as an unsaturated solution.
- Saturated Solution- A solution in which no solute can be dissolved after reaching a certain amount of temperature is known as an unsaturated saturated solution.
- Supersaturated Solution- A solution that contains more solute than the maximum amount at a certain temperature is known as a supersaturated solution.
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