Shanxian Chemical
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Hydrogen Bonding In Water Accounts For
The hydrogen bonding of water is caused by many physical properties. The boiling point of water is very high, and hydrogen bonds exist. If there is no hydrogen bond in water, based on its molecular weight, the boiling point should be much lower than zero degrees Celsius, just like hydrogen sulfide and other similar small molecules. However, due to the action of hydrogen bonds, the attractive force between water molecules is greatly increased. To vaporize it, more energy is required, and the boiling point rises to 100 degrees Celsius.
The surface tension of water is quite large, which is also the effect of hydrogen bonds. On the surface of water, water molecules attract each other due to hydrogen bonds, and tend to cohesion. The surface is like an elastic film. This property is manifested in many natural phenomena, such as insects walking on the water surface.
Furthermore, the density of ice is less than that of water, also due to hydrogen bonds. When water freezes, hydrogen bonds cause water molecules to form a regular tetrahedral arrangement, forming an empty lattice structure, and the molecular spacing increases, so the density of ice is less than that of liquid water. This property is of great significance in nature. Ice floats on the water surface and can protect underwater organisms from wintering.
All these all show that hydrogen bonds play a significant role in water, profoundly affecting the physical properties of water, and have a profound impact on many aspects of the natural world.
The surface tension of water is quite large, which is also the effect of hydrogen bonds. On the surface of water, water molecules attract each other due to hydrogen bonds, and tend to cohesion. The surface is like an elastic film. This property is manifested in many natural phenomena, such as insects walking on the water surface.
Furthermore, the density of ice is less than that of water, also due to hydrogen bonds. When water freezes, hydrogen bonds cause water molecules to form a regular tetrahedral arrangement, forming an empty lattice structure, and the molecular spacing increases, so the density of ice is less than that of liquid water. This property is of great significance in nature. Ice floats on the water surface and can protect underwater organisms from wintering.
All these all show that hydrogen bonds play a significant role in water, profoundly affecting the physical properties of water, and have a profound impact on many aspects of the natural world.
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