Question

Explain the effect of strong intermolecular forces on each of these parameters: (a) critical temperature;

Answer 1

• (A) The molecules can no longer be condensed because they are moving too quickly at the critical temperature.
• Because the forces are insufficient to stop molecular motion, this temperature drops with weaker intermolecular forces.
• Alternately, the critical temperature rises as intermolecular forces increase.

b) The boiling point rises as intermolecular forces do because it becomes harder and more energy-intensive to separate molecules from the liquid phase.

(C) For the same reason as in b), the vapor pressure falls as intermolecular forces rise.

• Strong intermolecular forces prevent molecules from entering the vapor phase easily at any given temperature, resulting in a decrease in vapor pressure.

d) The heat of vaporization rises as intermolecular forces increase because more energy is required to separate molecules from one another.

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The complete question is -

Explain the effect of strong intermolecular forces on each of these parameters: (a) critical temperature, (b) boiling point, (C ) vapor pressure, (d) heat of vaporization