Why does water have a higher boiling point than ethane?
Water has a higher boiling point because the hydrogen bonds that form among water molecules are stronger than the Van der Waals interactions among methane molecules, thus more energy must be provided in order to break the hydrogen bonds and allow the water molecules to escape the liquid state.
Which of the following best explains the reason why water has a high boiling point?
Explanation: Water has an unusually high boiling point for a liquid. This is related to the intermolecular forces between water molecules; when a liquid has particularly large intermolecular forces, it will have a higher boiling point.
Why does ethane have a lower boiling point than water?
Ethane has the molecular formula C2H6 and ethanol has the molecular formula of C2H5OH. Here we can see that an extra oxygen atom is present in ethanol due to the presence of the hydroxyl group. … This hydrogen bonding is absent in the ethane molecules. Hence its boiling point is lower.
Which reason explains why the boiling point of water is higher than the boiling point of hydrogen sulfide?
Between water and hydrogen sulfide, both are polar, and have dipole-dipole forces, so they have higher boiling points than methane or silane. But water has hydrogen bonds, which are extra-strong dipole-dipole forces. Water boils much hotter than hydrogen sulfide.
Which statement explains why water and ethanol have different boiling points?
Water needs higher energy to break those bonds. Hence, water has higher boiling point at same atmospheric pressure than ethanol. Chemical bonding is responsible for that which is stronger in water.
Which statement best explains why water has a higher?
Which best explains why water has a high specific heat? Hydrogen bonds increase the amount of energy that is required for the temperature to change. Which example best shows that the chemistry of water is helpful to plants? Water's polarity causes cohesion that pulls other water molecules up through a plant.
What causes water to have a high boiling point quizlet?
Hydrogen bonding, a particularly strong dipole-dipole force, causes a powerful attraction between water molecules, which results in a high boiling point.
Which factor is responsible for the unusually high boiling point of water?
hydrogen bonding Boiling point of water is due to the presence of hydrogen bonding. Hydrogen bonding is the attraction between the positive end and negative end of the molecules. This occurs in polar molecules. This attraction is called dipole-dipole attraction.
What is the difference in boiling points between water and methane?
According to the periodic table, water has a molecular weight of 18 and boils at 100°C or 212°F. For contrast, methane has an atomic weight of 16 and a boiling point of -161°C or -258°F.
Why ethanol has a higher boiling point than ethane explain using the intermolecular forces that exist between these molecules?
Ethanol has higher boiling point than ethane due to intermolecular hydrogen bonding. Intermolecular hydrogen bonding is possible in ethanol but not possible in ethane. Intermolecular hydrogen bonding leads to molecular association and increases boiling point as energy is required to break these hydrogen bonds.
Why is the boiling point of water so much higher than that of the other hydrogen compounds of group VI of the periodic table?
Water as a "perfect" example of hydrogen bonding There are exactly the right numbers of δ+ hydrogens and lone pairs so that every one of them can be involved in hydrogen bonding. This is why the boiling point of water is higher than that of ammonia or hydrogen fluoride.
Why does water upper H subscript 2 Upper O have a higher boiling point than hydrogen sulfide upper H subscript 2 Upper S )?
This is a result of the significant hydrogen bonding present in the water molecule.
Why does water have a higher boiling point than methane?
Methane has van der Waal's forces between molecules whereas water has hydrogen bonds between molecules. Hydrogen bonds are stronger than Van Der Waal's forces and therefore require more energy to be broken.
What best explains the unusually high boiling point of water?
So despite its small molecular weight, water has an incredibly big boiling point. This is because water requires more energy to break its hydrogen bonds before it can then begin to boil.
What property of water allows a high boiling point?
strong hydrogen bonds Water has strong hydrogen bonds between molecules. These bonds require a lot of energy before they will break. This leads to water having a higher boiling point than if there were only weaker dipole-dipole forces.
What type of intermolecular force contributes to the high boiling point of water?
Hydrogen bonding, a particularly strong dipole-dipole force, causes a powerful attraction between water molecules, which results in a high boiling point.
Why does water have high boiling and melting point compared to other molecules of same molecular weight?
First there is molecular size. Large molecules have more electrons and nuclei that create van der Waals attractive forces, so their compounds usually have higher boiling points than similar compounds made up of smaller molecules.
Why does water have higher boiling point than methane?
Methane has van der Waal's forces between molecules whereas water has hydrogen bonds between molecules. Hydrogen bonds are stronger than Van Der Waal's forces and therefore require more energy to be broken.
What are the differences between water and methane?
Differences between Water and Methane Water is polar and can form intermolecular hydrogen bonds (due to high electronegativity of oxygen atom) Methane is non-polar and can only form weak dispersion forces between its molecules (carbon has a lower electronegativity)
Why ethanol has the higher boiling point than ethane?
Ethanol has higher boiling point than ethane due to intermolecular hydrogen bonding. Intermolecular hydrogen bonding is possible in ethanol but not possible in ethane. Intermolecular hydrogen bonding leads to molecular association and increases boiling point as energy is required to break these hydrogen bonds.
Why is the boiling point of water is the highest among the hydrides of the group 16 elements?
The melting point and boiling point of water (H2O) molecules is unexpectedly high due to the stronger hydrogen bonds acting between water molecules.
Why does water have higher melting and boiling point?
Solution : In case of water, intermolecular hydrogen bonding takes place. So, large number of water molecules associate with each other. Therefore, large amount of energy is required to break the water molecules. Hence, water exists in liquid form, has high boiling point and melting point.
What gives water a higher boiling point?
Water has strong hydrogen bonds between molecules. These bonds require a lot of energy before they will break. This leads to water having a higher boiling point than if there were only weaker dipole-dipole forces. Water also has a high specific heat.
Why does water have a high boiling and melting point of water has a high boiling and melting point because of the <UNK> that exist between its molecules?
Solution : In case of water, intermolecular hydrogen bonding takes place. So, large number of water molecules associate with each other. Therefore, large amount of energy is required to break the water molecules. Hence, water exists in liquid form, has high boiling point and melting point.
Which of the following is responsible for the high boiling point of water in comparison to its small molecular mass?
Water has a high boiling point because its molecules are bound together by hydrogen bonding, which is a very strong intermolecular force.
Why does water have a high melting point?
H2O has very strong intermolecular forces due to the hydrogen bonds that a formed within the compound. Usually this would mean the compound has a very high melting point as a large amount of heat energy is required to overcome the forces, however H2O has a melting point of only O degrees.
Why do hydrogen bonds make water have a high boiling point?
Hydrogen bonds are relatively strong intermolecular forces, and thus it takes a lot of energy to break these bonds. This is why the boiling point of water is high, because a lot of heat (energy) is needed to break the intermolecular bonds holding the water molecules together.
What type of intermolecular forces contributed to the high boiling point of water?
T h e ce{The} The high boiling point of water is due to the tight networks of intermolecular hydrogen bonds textbf{hydrogen bonds} hydrogen bonds. For each water molecule, there are two hydrogen-oxygen bonds.
What is the difference between liquid methane and liquid water?
But there is one major difference; the liquid is not water, it is liquid methane/ethane. With temperatures far colder than anywhere on Earth at –179 degrees Celsius, water cannot exist as a liquid, it is frozen as hard as rock. But methane can exist as a liquid under those conditions and indeed does on Titan.
Why does water have a high specific heat?
Water's high heat capacity is a property caused by hydrogen bonding among water molecules. When heat is absorbed, hydrogen bonds are broken and water molecules can move freely. When the temperature of water decreases, the hydrogen bonds are formed and release a considerable amount of energy.