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Melting involve that intermolecular forces are weakened.
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What is the melting point H20?
H2O is water. The melting point of water is 0oC or 32oF
What is the point of water called?
Its melting point
When ethylene glycol is added to water the melting point of water is?
Ethylene glycol is antifreeze. The mixture has a lower melting point than pure water.
Does the presence of water raise the melting point of felsic magma?
No. Water lowers the melting point of magma, both mafic and felsic.
How does salt raises the melting point of water?
It doesn't increase the melting point of ice, instead, it lowers it. When a solute (which is the salt) is added to a solvent (which is what dissolves it), the boiling point is increased while both the freezing and melting points are decreased. This is evident in the boiling point elevation and the freezing/melting point depression system.
Explain the melting point of hydrogen sulphide?
It is not easy to "explain a melting point" without having some context for the question or a compound to compare it to. What I can say is... 1. The melting point of hydrogen sulfide is -82 degrees C. 2. H2S is a polar molecule (has a similar shape to water) and so will have a higher melting point than similarly sized atoms or molecules that are not polar like argon (MP = -189 degrees C) or O2 (MP = -218 degrees C). 3. Lacking an O-H, F-H, or N-H bond, H2S cannot form hydrogen bonds with other H2S molecules, so it won't have as high a melting point as H2O (MP = 0 degrees C), even though H2O is a smaller molecule (weaker dispersion forces) and both are polar. 4. Even though H2S is polar it is relatively small, which means it will have only weak dispersion forces contributing to holding the molecules together. There are plenty of molecules out there like Br2 (MP = -7 degrees) that are non-polar but still have higher melting points. This is because they have big, polarizable electron clouds that make the dispersion forces that hold them together stronger than the combination of dipole-dipole and dispersion forces that hold H2S molecules together. So although I do not exactly think I have explained the melting point of hydrogen sulfide, hopefully I have given you enough context to show you why it has such a low (-82 degrees C) melting point.
Why does octane have a higher boiling point then water?
Octane is a straight chain molecule with a large surface area and stacks easily with other octane molecules. This increases the strength of the London dispersion forces that keep the octane molecules attracted to each other. The London dispersion forces on octane are greater than for smaller straight chain molecules because octane is both heavier and has more electrons that make it more polarizable.
What is the melting point H20?
H2O is water. The melting point of water is 0oC or 32oF
Why does salt lower ice melting point?
I'll give two explanations. The first explanation needs an understanding of thermodynamics, the second one is easier. The addition of salt to water results in an increase in "entropy". This results in a lowering of the freezing point. That means the melting point is lower too. Unfortunately, you need to go through some mathematics to understand this explanation properly. So, you may prefer this explanation: When water freezes it forms ice (pure water). The water molecules still in the liquid phase have salt ions mixed in, reducing the concentration of water molecules. So, there's a reduction in water molecules going from liquid phase to the solid at the surface between liquid and ice. That means its harder to form ice and the melting point is lower. The lower melting point is simply because the concentration of water molecules in a salt solution is lower than in pure water. It's not because the salt "blocks" the path of water molecules or affects the chemical bonds. In fact, many different substances can lower the melting point.
Why is melting point for water higher than alcohol?
Water has hydrogen bonding between molecules. The hydrogen in one molecule is attracted to the oxygen in another molecule of water by electrostatic interaction. Water has a melting point of 0 ºC.In carbon dioxide there is no attraction between the molecules. Each molecule is non-polar so only van der Waal forces (also known as London forces or dispersion forces) are weak because the molecule is small.Water has higher intermolecular forces.
What kind of property is melting point and freezing point of water?
The melting point and freezing point of water are physical properties.
The melting point of water?
there is no melting point of water it is already a liquid its 0 degrees Celsius
What's the melting point of water in Celsius?
The melting point of water is zero degrees Celsius.
What is the melting and the boiling point of water on a cylinder?
The melting point of water (ice) is 0 0C. The boiling point of water is 100 0C.
Does carbon dioxide or water have a hogher melting point?
The melting point for carbon dioxide is 108.4 degrees Fahrenheit. The melting point for water is 32 degrees Fahrenheit.
Why does salt decrease ice's melting point?
Imagine water in contact with ice at equilibrium, at zero Celsius. Adding salt or any other water soluble substance shifts the equilibrium in favour of melting: Kinetic equilibrium between water and ice is maintained by constant interchange of water molecules between the solid and liquid phases. After adding a water soluble substance, there is a lower concentration of water molecules in the liquid, but the concentration of water molecules in the ice remains the same. Therefore, the equilibrium is shifted in favor of liquid (Le Chateliere's Principle), and the melting point must decrease to overcome this concentration change in the liquid. This freeezing point depression will be caused by any added solute and does depend on whether the heat of solution is positive, negative, or zero. (Melting point is an equilibrium property.)
Why does water have a higher melting point than oxygen?
Water has a high melting point and boiling point because of hydrogen bonds
