Energy Transpor2

Energy Transpor2 - Energy Transport Planet atmospheres slow...

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Energy Transport Planet atmospheres slow down the rate that heat escapes from a planet's surface or interior, as well as, distributing heat over a planet's surface. Because there is a temperature difference between the surface or interior of a planet and space, heat energy will flow from the warmer surface to the cold space. How well an atmosphere transfers heat and the methods it uses will have a profound effect on the surface temperature and weather. There are three ways gases can transfer energy: 1. radiation ---photons (energy packets) leak outward by scattering off gas particles. Nature prefers this way. 2. conduction ---fast-moving atoms collide with other atoms imparting some of their motion to them. This is used by metals like copper or aluminum to transfer heat (eg., from your stove element to the food), but it is not used by a gas since the gas molecules are so far apart from one another. The process of conduction is too inefficient in a gas to worry about. 3.
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This note was uploaded on 12/15/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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Energy Transpor2 - Energy Transport Planet atmospheres slow...

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