Biological significance of water Essay Example | Topics and Well Written Essays - 1000 words

Biological significance of wet - Essay ExampleWater is order on the earth in three forms solid, liquid and be adrift or ice, liquid water and gas respectively. It is essential for all living things and it is oft referred to as a universal solvent because many substances push aside in it. These unique properties of water result from the ways in which individual H2O molecules inter exemplify with each(prenominal) different.Water is the chemical substance with chemical formula H2O one molecule of water has two lovingness content atoms covalently bonded to a single type O atom. Oxygen attracts electrons much more strongly than heat content, resulting in a sack positive charge on the hydrogen atoms, and a mesh topology negative charge on the oxygen atom. The presence of a charge on each of these atoms gives each water molecule a net dipole moment. Electrical attraction between water molecules due to this dipole pulls individual molecules closer together, devising it more diff icult to separate the molecules and therefore raising the boiling depict. This attraction is known as hydrogen bonding. Water can be described as a polar liquid that dissociates disproportionately into the hydronium ion (H3O+(aq)) and an associated hydrated oxide ion (OH(aq)). Water is in dynamic equilibrium between the liquid, gas and solid states at standard temperature and pressure, and is the alone pure substance found naturally on Earth to be so. Waters has a melting point of zero degrees and boiling point of 100 degrees Celsius respectively. These properties are higher than would be expected based on similar compounds. Thus, water remains a liquid under a higher range of temperature compared to other compounds. As a result, plants and animals do not start freezing at lower temperatures or boiling at higher temperatures.ViscosityBecause of its comparatively smaller molecular weight, it is unusually viscous. Water has the ability to act as either an acid or a base depending on the circumstances, and by its nature it is abruptly neutral (its the standard for balance between acids and alkalines bases).Universal SolventWater is the most universal of solvents and though polar in its make up, it exhibits properties that indicate a sort of polymerizing link between its molecules similar to heavier organic non-polar compounds. Existence in three forms solid, liquid, gasIt exists on earth in all three basic states, solid, liquid, and gas, High Heat capacityWater is also extremely useful due to its high heat capacity. It has an enormous ability to absorb and transmit energy. For example the amount of energy it would take to melt 1 kilogram of ice at zero degrees Celius would be enough to lower the temperature of 1 kilogram of aluminum over 570 degrees Celsius. While the amount of heat it would take to melt that kilogram of ice, heat it and boil away, 720 Calories, would be enough to raise that same amount of Aluminum to its melting point This is why water is exaltation as a insulation or a heat dissipation source. It holds more heat than effective about anything. Easily reacts with other compoundsWater reacts with more substances than any other compound. It reacts physically with several compounds to jibe to their crystal structure. Compounds like copper and magnesium sulfate are two examples of many compounds that almost everlastingly found in nature with water molecules physically attached to their crystal structure. These type of compounds are often dried out or dehydrated and used to absorb water from their surroundings. Some of these compounds, have water as such an important part of their structure that they will even extract all for sale moisture from the air. These compound are natural dehumidifiers, dependent on water to complete their structure.