BIO SCI 93 Chapter 3: Bio Sci 93: Chapter 3- Water and Life
23 Oct 2018
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BIO SCI 93 Full Course Notes
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Adhesion: clinging of one substance to another. Surface tension: a measure of how difficult it is to stretch or break the surface of a liquid. The faster a molecule moves, the greater its kinetic energy. The movement of molecule is called thermal energy. Temperature: measure of energy that represents the average kinetic energy of a molecule in a body of matter. When two objects are brought together, thermal energy transfers from warmer to cooler until it is same temperature. Heat: thermal energy in transfer from one body of matter to another. One convenient unit of heat is called calorie (cal) Specific heat: amount of heat that must be absorbed or lost for 1g of that substance to change its temperature by 1oc. Can be seen as how well it resists to temperature change. Water"s specific heat is 1 cal/g* oc.
