Temperature Change of Water

Temperature Change of Water - Temperature Change of Water A...

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Temperature Change of Water A given amount of heat energy will change the temperature of water less than it will change the temperature of most other kinds of substances. It takes a relatively large amount of heat will raise the temperature of water a small amount. This property is due to hydrogen bonding. Normally, adding heat energy to a substance causes increased motion of the molecules. The hydrogen bonds between water molecules, however, cause resistance to increased motion; additional heat energy is needed to break the bonds. Similarly, a large amount of heat is released as water cools. It takes 1 calorie of heat to raise the temperature of 1 gram of water 1° C. To raise the temperature of an equal volume of air 1° C takes 0.0003 calories. Water requires 3000 times more energy than air. This property protects organisms from rapid temperature changes. On a larger scale, ocean currents carry an enormous amount of heat energy and have a major impact on climate. Freezing and Evaporation of Water
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.

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