As the intermolecular attractive forces between molecules increas...

Question

As the intermolecular attractive forces between molecules increase in magnitude, do you expect each of the following to increase or decrease in magnitude? (g) critical temperature.

Accepted Answer

Hey everyone where asked how are the following quantities affected by stronger inter molecular forces. Starting off with vapor pressure, we can define vapor pressure as the pressure exerted by a vapor in equilibrium with its liquid state. So stronger inter molecular forces is going to lead to lower vapor pressure, which means that we will have a lower evaporation of our liquid. So are stronger inter molecular forces decrease that vapor pressure, which will subsequently increase our boiling point, and we can define boiling point as the temperature at which the vapor pressure equals the pressure surrounding the liquid. And since our vapor pressure decreased, our boiling point had to increase, since we need more energy to evaporate that liquid. So I hope this made sense and let us know if you have any questions.

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