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Answered 2012-07-13 15:49:17

The greater the intermolecular attraction, the higher the melting point and boiling point. Melting and boiling are both processes which have to overcome intermolecular attraction.

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How melting and boiling points are affected by intermolecular forces?

Compounds with strong intermolecular forces have higher melting and boiling points.


How are intermolecular forces related to the boiling and melting pts of molecules?

The stronger the intermolecular forces, the higher the melting point and boiling point. The weaker the intermolecular forces, the lower the melting and boiling points are.


Does intermolecular forces have a boiling or melting point?

An intermolecular force has both a boiling point and melting point


Why are the melting and boiling points of covalent compounds are usually low than those in ionic compounds?

Melting and boiling points are determined by the strength of the intermolecular forces present in the compound. The stronger the intermolecular forces, the higher the melting and boiling points. There are four types of intermolecular forces, from lowest strength to highest: London dispersion forces, dipole-dipole, hydrogen bonding, and ion-dipole. Ionic compounds will have ion-dipole intermolecular forces. Because this is the strongest intermolecular force, ionic compounds will also have the highest melting and boiling points.


How does intermolecular forces affect boiling point?

The greater the intermolecular forces in a liquid, the higher is its boiling point.


How do intermolecular forces affect boiling point of a liquid?

Low intermolecular forces, low boiling point.


What properties are affected by the strength of the intermolecular forces?

The physical properties of melting point, boiling point, vapor pressure, evaporation, viscosity, surface tension, and solubility are related to the strength of attractive forces between molecules.


What is the relationship between the strength of intermolecular forces and boiling point?

as the intermolecular forces increses the boiling point is increses


How is high melting and boiling points related to the structure of the compounds?

The structure of a compound will dictate what intermolecular forces hold the molecules together. The stronger these forces, the higher will be the boiling point.


Why do dipole forces have an impact on the melting and boiling points of substances?

Dipoles are a form of intermolecular force which holds molecules together. The greater the intermolecular force, usually the greater the boiling point, for example.


What is the relationship between the strength of the intermolecular forces and boiling point?

Boiling can only occur when the kinetic energy of heat overcomes the intermolecular forces holding a liquid together, so the greater the intermolecular forces, the higher the boiling point.


What can infer about the attraction between particles in a substance with a low melting point?

The stronger the intermolecular forces, the higher the boiling point, because more kinetic energy is needed to break these intermolecular forces apart.


What types of things determine the melting and boiling point of an element or compound?

The melting and boiling point of a substance is largely determine by the intermolecular forces which hold its molecules together. These may included Van der Waals forces (dispersion forces), dipole-dipole interactions, as well as hydrogen bonding. The stronger these forces act between molecules, the high the melting point and boiling point of the substance.


What are discrete atoms?

A discrete atom or molecule is one with very weak intermolecular forces, causing them to have low melting and boiling points.


Why do the melting and boiling points of a particular subsatnce vary?

It is because the intermolecular forces(the attractive forces between the molecules of a substance) differ from one substance to another. The chemical with the stronger intermolecular forces will have higher melting and boiling points, and vice versa. This is because more energy is required to separate the molecules to melt or boil the substance, if the forces are strong. The factors that determine the size of these forces are :the type of bonding in the molcules, andthe mass of the molecules.


The stronger the intermolecular forces in a substance?

The stronger the forces the stronger the attraction between the molecules in the substance. This will tend to increase the temperature of phase changes, melting and boiling points.


Which physical properties is not affected by an increase in intermolecular forces?

The correct answers are: Capillary attraction; Melting point; and Heat of vaporization. Stronger intermolecular forces increase capillary attraction, melting point, and the heat of vaporization. They have no bearing on conductivity and hardness.A.HardnessB.ConductivityC.Capillary attractionD.Melting pointE.Heat of vaporization


What is the difference between the melting point of a molecular compound and an ionic compound?

ionic compounds have high melting points because the have strong intermolecular forces Molecular compounds boiling point is lower however because they have less strong intermolecular forces. the strength of the intermolecular forces vary with the strength of the electro negativity of an atom. for instance H2O has a higher boiling point than H2S because Oxygen has a higher electro negativity. The strength of the intermolecular forces between non-polar molecules is even weaker than that between polar molecules.


How are the melting points of ionic compounds different from molecular compounds?

ionic compounds have high melting points because the have strong intermolecular forces. Molecular compounds boiling point is lower however because they have less strong intermolecular forces. the strength of the intermolecular forces vary with the strength of the electro negativity of an atom. for instance H2O has a higher boiling point than H2S because Oxygen has a higher electro negativity. The strength of the intermolecular forces between non-polar molecules is even weaker than that between polar molecules.


Why do halogens have low boiling and melting points?

The forces between a molecule and its neighbours are much weaker. It is these intermolecular forces, not the covalent bonds, that must be overcome when the substances melts or boils


How do the intermolecular forces within a solid differ from that of a gas or liquid How does this explane a solid behavior?

The intermolecular forces within a solid are stronger than the similar forces in a liquid or a gas; as a consequence solids are harder, denser, having generally high melting and boiling points.


What are affected by an increase in intermolecular forces?

Capillary attraction, Melting point, Heat of vaporization Sublimation temperature, Surface tension, Vapor pressure, Heat of fusion Boiling point, Viscosity, Density, Heat of sublimation Apex: Boiling point, viscosity, heat of sublimation, density.


What does a high melting point temperature indicate about a substance?

Strong Intermolecular Forces attract the molecules


How do polar molecules affect boiling points?

Polar molecules have relatively weak intermolecular forces. Intermolecular forces and boiling point have a direct relationship, so due to the fact that polar molecules have weak forces, their boiling points will be lower.


Is the boiling point higher for compounds with a high viscosity?

Viscosity is the thickness of the compound. The thicker the compound the higher the intermolecular forces. The higher the intermolecular forces the higher the boiling point is.


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