Investigation 4 Exam Notes

Investigation 4 Exam Notes - Investigation 4: Heat Transfer...

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Investigation 4: Heat Transfer Notes What is Heat? There is no cold, only heat. What we perceive as cold is actually low levels of heat. When you hold an ice cube in your hand, cold doesn’t go into your hand; heat energy goes out of your hand into the ice cube. Heat is motion of atoms and molecules. The greater the motion, the more heat energy there is in a solid, liquid or gas. Example: When material 1, with lots of heat (molecular motion), comes in contact with material 2, which has less molecular motion, the energized molecules in material 1 bang into molecules in material 2 and get them moving faster. As a result, molecules in material 2 have increased molecular motion (heat), so material 2 is now hotter. Molecules in material 1 have less motion (heat), so material 1 is now cooler. Conduction Energy transfer happens between molecules or atoms when they come in contact. This kind of transfer is called
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This note was uploaded on 04/12/2011 for the course CHEM 302 taught by Professor Rodriguez during the Fall '10 term at Grand Valley State University.

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Investigation 4 Exam Notes - Investigation 4: Heat Transfer...

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