Respuesta :
As intermolecular forces increase, the boiling point increases because it becomes more difficult and takes more energy to separate molecules from the liquid phase.
- Intermolecular forces hold molecules together. They attract them to one another.
- The stronger these forces, the more energy needed to break these molecules away from each other.
- This energy is measured as temperature. High molecular forces = high boiling point (and melting point).
What is the effect of intermolecular forces on boiling point?
Higher the intermolecular forces between the liquid particles, harder it is for it to escape into the vapor phase, ie., you need more energy to convert it from liquid to the vapor phase, in other words, higher its boiling point.
What happens at a boiling point?
- Boiling point is the temperature that a liquid will change phase into a gas.
- Boiling occurs when the vapour pressure of a liquid is equal to the atmospheric pressure of the gas outside of it.
- Because of this, as the outside pressure changes so does the boiling point of the liquid.
Learn more about Boiling point
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