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How are intermolecular forces related to the boiling and melting pts of molecules?
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Answered 2010-03-15 17:26:42
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.
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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.
Properties that affects the melting and boiling points of a molecule?
The melting point and boiling point of a substance come under the category of phase changes. And the temperature at which these phase changes occur are related to the intermolecular forces holding the molecules of the substance together.
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.
How are boiling points related to the strength of intermolecular forces?
The stronger the intermolecular forces, the higher the boiling point. This occurs because energy must first go into breaking the intermolecular bonds. Once these bonds are broken, the molecules can then gain enough energy to break free of the liquid phase.
How melting and boiling point are related to stability of a compound?
Thermally unstable compounds are decomposed before melting or boiling.
How does air pressure effect the melting point of water?
It does not very significantly because melting does not involve gas-phases molecules. Boiling, on the other hand, is strongly affected.See the Related Questions for how the boiling point of water is affected by air pressure.
Why water is a liquid at room temperature related to its polarity?
Molecules with stronger intermolecular forces will have a greater melting and boiling point than those with weaker intermolecular forces. Due to water's polarity it exhibits dipole-diplole interactions between molecules with the positively charged hydrogen atoms from one water molecule aligning with the negatively charged oxygen atoms. These forces are strong enough to keep water in its liquid state up to 100o C.
How are density and melting point related?
Generally a high density is related to a high boiling point.
What characteristics is the boiling point of a liquid related to?
Under standard temperature and pressure, the boiling point of a liquid is most closely related to the amount of dissolved solute in the liquid and the intermolecular forces within the liquid.
How does the elevation and air pressure affect the freezing point of water?
It does not very significantly because melting does not involve gas-phases molecules. Boiling, on the other hand, is strongly affected.See the Related Questions for how the boiling point of water is affected by air pressure.
How is the boiling of liquid related to the evaporation process?
Evaporation is partial boiling. When a liquid reaches its boiling point, no molecules of water will stay liquid and evaporation is at 100%.
What are the properties of water related to hydrogen bonds?
Unusually high boiling point and melting points compared to other molecules of similar size. Low density of ice, hydrogen bonding causes an "open" structure.
Melting points of organic compounds?
The melting points of organic compounds will vary and are related to the boiling points. Organic compounds that have strong cohesive forces will generally have higher melting points.
How are the properties of a mineral related to chemical bonds?
Compound with ionic bonds have higher melting and boiling points.
Does magnesium sulfate have a high melting point?
Magnesium sulfate has a high melting and boiling point, as it is made of Ionic bonds which are very strong. A lot of energy is needed to break them. So ionic compounds have high melting and boiling points. See related link for more information.
What is the melting point and boiling point for beryllium?
According to the Wikipedia article on beryllium, its melting point is 1287 degrees Celsius, and its boiling point is 2469 degrees Celsius. Click on the related link below to learn more about the element beryllium.
Why does SiO2 have a much higher melting point than CO2?
melting pt and boiling pt are directly related to molecular weight thus sio2 having greater molecular weight has greater melting pt
What is the melting and boiling point of gold?
Melting point: 1337.33 K, 1064.18 °C, 1947.52 °F Boiling point: 3129 K, 2856 °C, 5173 °F There is a related link below for more data on the metal we know as gold (Au).
How are intermolecular forces and solubility related?
The greater the intermolecular forces, the greater the solubility.
What is the melting or boiling point of metal?
It varies, depending on the metal. There are lots of different types of metal all with different properties.Boiling is a term which is related to pressure and temperature. where molecules of the substance tranforms from liquid phase to solid phase is called as the boiling. On Earth atmospheric pressure is considered as 1 ATM and hence gases trapped under normal conditions in the liquied causes to escape from the liquid without condesating. (As metal molecules are heavy in density so they condensate quickly. So Boiling point of metal at nominal atmosperic pressure virtually do not exists.
How is Temperature change related to the strength of intermolecular forces?
The greater the intermolecular the force, the greater the energy required to break up those bonds between the molecules.
Practical applications of latent heat of vaporization on physical therapy?
Related DocumentsBoiling Points of some common Fluids and Gases - The boiling points of some common liquids and gases as acetone, butane, propane, and moreMelting and Boiling Temperatures - Evaporation and Melting Heat - Melting and boiling point temperatures, latent evaporation and melting heat of some common substances as copper, gold, lead and more - in SI unitsSteam and Vapor Enthalpy - Introduction and definition of vapor and steam enthalpy - specific enthalpy of saturated liquid, saturated vapor and superheated vapor
Why the boiling point for different amount of water is the same?
More water, more molecules of water being frictioned by the heating source, thus generating the same boiling point. Boiling point of a substance is not related to the amount, but to its molecular structure.
Why is it that butane has got a high melting and boiling point than propane?
The M.P. and B.P. of any substance is related to the intermolecular forces that act. Butane, which is a saturated hydrocarbon with 4 Carbon atoms, is heavier than Propane, which has only 3 Carbon atoms. Because of this, Butane has stronger Van der Waals forces (or London forces) than Propane. This means that it requires more energy to overcome the intermolecular forces in Butane, resulting in the relatively higher M.P. and B.P. Note that the London forces are the only forces that act as intermolecular forces in the case of Butane and Propane.
What change of state is closely related to boiling?
Evaporation is the change of state that is closely related to boiling.
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