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What is usually a property of covalently bonded compounds?
Covalent bonded compounds have generally lower melting and boiling points, are not hard, are less conductive etc.
Why Compounds having hydrogen bond generally have high boiling points?
Compounds that exhibit hydrogen bonding typically have higher boiling points due to the strong intermolecular forces associated with these bonds. Hydrogen bonds occur when hydrogen is covalently bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine, creating a significant dipole moment. This strong attraction between molecules requires more energy (in the form of heat) to overcome, resulting in higher boiling points compared to compounds that do not engage in hydrogen bonding.
Why is it that solids have very high boiling points and melting points?
Well,its because the particles that constitute solids are closer together hence the forces of attraction are greater rising the boiling point and melting points are raised as the heat try to break the bonds
Molecular compounds have relatively high boiling points?
Molecular compounds typically have lower boiling points compared to ionic compounds because of weaker intermolecular forces between molecules. The boiling points of molecular compounds increase with increasing molecular size and polarity. However, they generally have lower boiling points compared to ionic compounds due to the nature of the forces holding the molecules together.
Group of compounds collected in fractional distiallation?
In fractional distillation, a group of compounds with different boiling points are separated based on their different boiling points. As the mixture is heated, the compounds vaporize at different temperatures and are collected in separate fractions according to their boiling points. This allows for the isolation of individual compounds from a complex mixture.
What is usually a property of covalently bonded compounds?
Covalent bonded compounds have generally lower melting and boiling points, are not hard, are less conductive etc.
Why Compounds having hydrogen bond generally have high boiling points?
Compounds that exhibit hydrogen bonding typically have higher boiling points due to the strong intermolecular forces associated with these bonds. Hydrogen bonds occur when hydrogen is covalently bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine, creating a significant dipole moment. This strong attraction between molecules requires more energy (in the form of heat) to overcome, resulting in higher boiling points compared to compounds that do not engage in hydrogen bonding.
Why do metallically bonded compounds have high melting and boiling points?
Metallically bonded compounds have high melting and boiling points due to the strength of their bonds. Metallic bonds are very strong and therefore take a lot of energy to break, which could be heat. This is why lots of heat energy is needed to break down each individual metallic bond
Do Covalent compounds boil at higher temperatures than ionic bonds or lower temperatures than ionic bonds?
'Covalently bonded' = 'Non polar' compounds have much LOWER boiling points than polar compounds and 'ion bonded' = 'Crystallic' compounds.(Compare: (all at STP)H2S (gas, linear, covalent H-S bonds) andH2O (liquid, non-linear, polar H-O bonds) andNa2O (solid, ionic, crystal, tetrahedrical(Na+) +cubic(O2-)
Why is it that solids have very high boiling points and melting points?
Well,its because the particles that constitute solids are closer together hence the forces of attraction are greater rising the boiling point and melting points are raised as the heat try to break the bonds
Molecular compounds have relatively high boiling points?
Molecular compounds typically have lower boiling points compared to ionic compounds because of weaker intermolecular forces between molecules. The boiling points of molecular compounds increase with increasing molecular size and polarity. However, they generally have lower boiling points compared to ionic compounds due to the nature of the forces holding the molecules together.
What is the boiling temperature for covalent compounds?
All different covalent compounds have different boiling points.
What are the boiling points of volatile compounds?
The boiling points of volatile compounds will vary depending on the specific compound. Generally, volatile compounds have low boiling points, typically below 100°C. Some examples of volatile compounds with low boiling points include ethanol (78.3°C), acetone (56°C), and diethyl ether (34.6°C).
How can one determine the boiling points of compounds?
The boiling points of compounds can be determined by considering the strength of the intermolecular forces between molecules. Compounds with stronger intermolecular forces, such as hydrogen bonding or dipole-dipole interactions, tend to have higher boiling points. Additionally, the size and shape of the molecules can also affect the boiling point. By analyzing these factors, one can predict and compare the boiling points of different compounds.
Group of compounds collected in fractional distiallation?
In fractional distillation, a group of compounds with different boiling points are separated based on their different boiling points. As the mixture is heated, the compounds vaporize at different temperatures and are collected in separate fractions according to their boiling points. This allows for the isolation of individual compounds from a complex mixture.
Why do mixtures not have sharp melting points and boiling points?
Because they are not pure compounds !
What causes the differences in melting points and boiling points between ionic and covalent compounds molecular substances?
The differences in melting and boiling points between ionic and covalent compounds are due to the strength of the intermolecular forces present. Ionic compounds have strong electrostatic forces of attraction between oppositely charged ions, resulting in higher melting and boiling points. Covalent compounds have weaker intermolecular forces such as London dispersion forces or dipole-dipole interactions, leading to lower melting and boiling points compared to ionic compounds.
