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The boiling point of a substance is influenced by the strength of intermolecular forces between its molecules. In the case of H2O (water), it forms strong hydrogen bonds between molecules, resulting in a higher boiling point compared to H2Se (hydrogen selenide), which has weaker dispersion forces due to larger atomic size and lower electronegativity of selenium.
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Which has the highest boiling point H2S or H2Se or H2O?
Water has the highest boiling point, as the hydrogen bonds between the molecules need more energy to break than the hdyrogen bonds in H2S, and H2Se, as Oxygen is much more electronegative than Sulphur of Selenium, so it makes the molecules more polar.
Does salt evaporate in boiling water?
No, salt does not evaporate in boiling water. When water boils, it turns into steam, leaving behind the salt in the water. Salt does not have a low enough boiling point to evaporate along with the water.
Why boiling point of potassium higher than its melting point?
The boiling point of an element is often higher than its melting point because it takes more energy to separate the molecules in a liquid and turn them into a gas. In the case of potassium, the boiling point is higher than the melting point because the forces holding the potassium atoms together in a liquid state are stronger than in a solid state.
Why does salt not evaporate with water?
Salt does not evaporate with water because it has a much higher boiling point than water. When water evaporates, it leaves behind the salt, which remains solid. Salt can be dissolved in water, but it does not evaporate along with the water molecules.
What is the difference between the boiling points of water and liquid nitrogen?
The boiling point of water is 100 degrees Celsius, while the boiling point of liquid nitrogen is -196 degrees Celsius. This means that water boils at a much higher temperature compared to liquid nitrogen.
Which has the highest boiling point H2S or H2Se or H2O?
Water has the highest boiling point, as the hydrogen bonds between the molecules need more energy to break than the hdyrogen bonds in H2S, and H2Se, as Oxygen is much more electronegative than Sulphur of Selenium, so it makes the molecules more polar.
Does ethanol has the lower boiling point?
It depends what chemical or compound you are comparing the boiling point to. Ethanol has an atmospheric pressure boiling point of 78.1 °C (172.6 °F). This is slightly lower than the boiling point of water at the same pressure, much lower than the boiling point of iron, much higher than the boiling point of bromine.
How does the boiling point in degrees Celsius of a saltwater solution compare to the boiling point of normal tap water?
The boiling point of a saltwater solution is higher than that of normal tap water because the presence of salt raises the boiling point. Salt molecules disrupt the formation of water vapor molecules during boiling, requiring more energy to break the bonds and reach the boiling point.
What are the boiling and melting point's of salty water?
That depends on how much salt is dissolved in the water. Generally, the boiling point will be higher than for pure water, and the melting point will be lower than for pure water.
Does salt evaporate in boiling water?
No, salt does not evaporate in boiling water. When water boils, it turns into steam, leaving behind the salt in the water. Salt does not have a low enough boiling point to evaporate along with the water.
Why does heptane have a higher boiling point than methanol?
Heptane has a higher boiling point than methanol because heptane is a larger molecule with stronger London dispersion forces between its molecules. Methanol, being a smaller molecule, has weaker intermolecular forces like hydrogen bonding, which are not as strong as the London dispersion forces in heptane.
Why boiling point of potassium higher than its melting point?
The boiling point of an element is often higher than its melting point because it takes more energy to separate the molecules in a liquid and turn them into a gas. In the case of potassium, the boiling point is higher than the melting point because the forces holding the potassium atoms together in a liquid state are stronger than in a solid state.
Why is hydrogan peroxide higher boiling point than water?
Hydrogen peroxide has a higher boiling point than water because it has stronger intermolecular forces due to the presence of hydrogen bonding. This results in a higher energy required to break the bonds between hydrogen peroxide molecules, leading to a higher boiling point compared to water.
Why doeswater boil at a low boiling point on top of a mountain and a higher boiling point in a pressure cooker?
This is because the boiling point of any fluid increases as the pressure acting on it is increased. Atmospheric pressure on top of a mountain is lower than normal atmospheric pressure. Conversely, by not allowing steam to escape, the pressure above the water in a pressure cooker is allowed to build up to a much higher level.
Why does salt not evaporate with water?
Salt does not evaporate with water because it has a much higher boiling point than water. When water evaporates, it leaves behind the salt, which remains solid. Salt can be dissolved in water, but it does not evaporate along with the water molecules.
What is the residue when sodium chloride water solution was heated to dryness?
When a mixture of sodium chloride and water is heated to dryness, the residue is sodium chloride, because the boiling point of sodium chloride is much higher than the boiling point of water.
Does higher boiling point evaporate faster?
No, a higher boiling point means that a substance requires more heat to reach its boiling point and evaporate. Therefore, a substance with a higher boiling point would evaporate slower than a substance with a lower boiling point.
