Properties of Water

Length: 3 Pages 634 Words

Properties of water We use the word water everyday without thinking twice about what it is or why it¡¯s so important but without water life would seize to exist here on earth. Dihydrogen oxide, hydroxyl hydride, hydrogen hydroxide, are all chemical names for water none commonly used but all represents the single hydrogen and the two oxygen atoms. To gain an understanding of water you must first obtain an understanding of water¡¯s most important feature. This is the one feature that is responsible for nearly all of waters special qualities, hydrogen bonding. This single feature of water is what allows life to exist here on earth. This single feature is responsible for waters ability to float, its high specific heat and its cohesion. The hydrogen bond is a unique bond it is strong yet it is always breaking and reforming. The hydrogen bond allows water to form a higher level of structural organization then would be allowed in a mol Continue...

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Hydrogen bonds are able to form because of the polarity of the water molecule. This is because water molecules can form hydrogen bonds with up to four neighbors and therefore allowing more structural organization. This allows for water to absorb or release large amounts of heat with a relatively small change in its own temperature. Without waters cohesion and adhesion plants would not be able to transport water and because of this would die, making life here on earth very difficult. The ability for water to travel against gravity in the veins of plants is also helped by adhesion, the cling of the water to the walls of the vessels. This is once again a result of hydrogen bonds. Because the opposite ends have opposite charges water is considered to be a polar molecule and this results in the attraction between water molecules and the formation of hydrogen bonds. Thus the hydrogen bond allows for a higher specific heat and therefore water is able to stabilize the temperature. This allows for the transport of water all the way from the roots of a tree to uppermost leaf on a tree. When water begins to cool a large amount of hydrogen bonds begin to form before it begins to release energy. It takes 1 calgC to raise the temperature of water 1C which is higher then most other substances such as ethyl alcohol which is . Specific heat the amount of heat that most be absorbed or released to change 1g of a substance 1 C. This allows for a more structured shape then other liquids give, meaning that the water molecules are held together resulting in cohesion.