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Are melting points of molecular substances higher than those of ionic substance?
Wiki User
∙ 9y ago
Ionic substances have higher melting points.
Wiki User
∙ 9y ago
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How does the type of bond present in a substance affect the substances properties?
The type of bond present in a substance affects its properties by influencing factors such as strength, melting point, electrical conductivity, and solubility. For example, substances with ionic bonds tend to have higher melting points and be soluble in water, while substances with covalent bonds may have lower melting points and be insoluble in water. The type of bond also determines the substance's reactivity and behavior in different conditions.
Are the boiling points higher temperature than the melting points?
No, boiling points are typically higher temperatures than melting points. Boiling point is the temperature at which a substance changes from a liquid to a gas, while melting point is the temperature at which a substance changes from a solid to a liquid.
Is Melting point higher than boiling points?
No, the boiling point is typically higher than the melting point for most substances. The boiling point is the temperature at which a substance changes from a liquid to a gas, while the melting point is the temperature at which it changes from a solid to a liquid.
What is the effect of change in pressure in melting point?
An increase in pressure generally raises the melting point of a substance, as higher pressure forces particles closer together, making it more difficult for them to move into a liquid state. Conversely, decreasing pressure tends to lower the melting point, allowing particles to move more freely into a liquid state.
Does boiling point and melting point occur at the same temperature?
No, boiling point and melting point occur at different temperatures. The melting point is the temperature at which a substance changes from a solid to a liquid, while the boiling point is the temperature at which a substance changes from a liquid to a gas.
What causes different melting points?
Different melting points are caused by variations in molecular structures and intermolecular forces between substances. Substances with strong intermolecular forces will have higher melting points, while substances with weaker forces will have lower melting points. Additionally, factors such as molecular weight, shape, and polarity also contribute to the melting point of a substance.
How would you find the relative melting points of a group of substance?
You can compare the relative melting points of substances by looking at their chemical structures, molecular weights, and intermolecular forces. Substances with stronger intermolecular forces (such as hydrogen bonding) typically have higher melting points compared to those with weaker forces. Experimentally, you can also perform melting point tests to directly compare the melting temperatures of the substances.
What is the effect of different masses on the same substances on the melting point?
The question isn't worded very well, so I'm not sure this is the answer to what you were trying to ask. The bulk mass of a substance has no impact whatsoever on the melting point of that substance. Covalently bonded molecules with higher molecular masses tend to have higher melting points, if the substances are roughly the "same kind of substance", which is an ill-defined term so you shouldn't put too much faith in this until you've studied chemistry enough to have developed a sort of intuition about what it means.
Which substance ionic or covalent has a higher melting point?
Ionic substances generally have higher melting points compared to covalent substances. This is because ionic bonds are stronger and involve the attraction between oppositely charged ions, requiring more energy to break compared to the sharing of electrons in covalent bonds.
Why substances have different melting points?
just because accept it ok!
Why two different substances have different melting point?
Different substances have different melting points because the strength of intermolecular forces (such as hydrogen bonding, dipole-dipole interactions, and London dispersion forces) vary between substances. Substances that have stronger intermolecular forces require more energy to overcome them, resulting in a higher melting point. Conversely, substances with weaker intermolecular forces have lower melting points as they require less energy to transition from solid to liquid state.
Who has higher melting point Pure or Impure Substance?
A pure substance typically has a higher melting point than an impure substance. Impurities disrupt the regular arrangement of particles in the substance, making it more difficult for them to overcome the intermolecular forces and transition from solid to liquid state. This results in a lower melting point for impure substances.
Higher melting point than expected?
It is indeed possible for a substance to have a higher melting point than expected. This normally happens when the substance is impure.
Does melting point change from altitude to altitude?
Yes, the melting point of a substance can change with altitude due to the variation in atmospheric pressure. As altitude increases, atmospheric pressure decreases, which can affect the boiling and melting points of substances. Generally, lower pressure at higher altitudes can result in lower melting points for many substances.
How does the type of bond present in a substance affect the substances properties?
The type of bond present in a substance affects its properties by influencing factors such as strength, melting point, electrical conductivity, and solubility. For example, substances with ionic bonds tend to have higher melting points and be soluble in water, while substances with covalent bonds may have lower melting points and be insoluble in water. The type of bond also determines the substance's reactivity and behavior in different conditions.
Contrast ionioc and molecular substances in terms of the types of attractive forces that govern their behavior?
Ionic substances are held together by electrostatic forces of attraction between positively and negatively charged ions, while molecular substances are held together by various types of intermolecular forces such as hydrogen bonding, dipole-dipole interactions, and London dispersion forces. Ionic substances have higher melting and boiling points due to the strong electrostatic forces, while molecular substances typically have lower melting and boiling points as the intermolecular forces are weaker.
Compared With the Melting Point Of Ionic Compounds The Melting Points Of Molecular Solids Tend To Be?
Ionic compounds have a higher melting point.
