How do solute particles increase boiling point?

Thread starter TT0
Start date Jan 16, 2016
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Boiling Boiling point increase Particles Point

In summary, when a solute is added to a solvent, the boiling point of the solvent increases due to the disruption of attractive forces between solvent molecules. The concentration of solute has a direct effect on the boiling point elevation, with a higher concentration resulting in a greater increase. Different solutes have varying effects on boiling point, depending on their nature, size, and structure. Adding a solute will always increase the boiling point of a solvent, as it disrupts solvent-solvent interactions. Atmospheric pressure can also impact the boiling point elevation caused by solute particles, with higher pressure leading to a higher elevation.

Jan 16, 2016

TT0

Please post this type of questions in the HW section using the template.

The question is:

Which solution listed below is going to have the highest boiling point?

A. 1.5 m NaCl
B. 1.5 m AgCl
C. 2.0 m C6H12O6
D. 2.0 m CaCl2
E. 1.0 m Al2(SO4)3

I chose D (which was right) because in a solution, the more solute particles there is the higher the boiling point (this is what I learnt). Could someone tell me if this is the correct logic?

Thanks!

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Jan 16, 2016

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Yes.

Jan 17, 2016

TT0

Thanks!

Related to How do solute particles increase boiling point?

1. How do solute particles increase boiling point?

When a solute is added to a solvent, the boiling point of the solvent increases. This is because the solute particles disrupt the attractive forces between solvent molecules, making it more difficult for them to escape into the gas phase. This results in a higher temperature needed to reach the boiling point.

2. How does the concentration of solute affect the boiling point?

The concentration of solute directly affects the boiling point elevation. In general, a higher concentration of solute will result in a greater increase in boiling point of the solvent. This is because there are more solute particles present to disrupt the solvent-solvent interactions.

3. Why do different solutes have different effects on boiling point?

The effect of a solute on boiling point depends on the nature of the solute and solvent. Some solutes may have stronger intermolecular forces with the solvent, causing a greater increase in boiling point. Additionally, the size and structure of the solute particles can also play a role in their effect on boiling point.

4. Can the boiling point of a solvent be decreased by adding a solute?

No, adding a solute to a solvent will always increase the boiling point. This is due to the disruption of solvent-solvent interactions by the solute particles, which requires a higher temperature to overcome.

5. How does atmospheric pressure affect the boiling point elevation caused by solute particles?

Atmospheric pressure can also play a role in the boiling point elevation caused by solute particles. Generally, a higher atmospheric pressure will result in a higher boiling point elevation, as it provides more resistance for the solvent molecules to escape into the gas phase.