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How Do Rain Clouds Form?

How Do Rain Clouds Form?. http://www.youtube.com/watch?v=1gvHpO26Xv4&feature=related http://www.youtube.com/watch?v=2sb58M1zIrY&feature=related http://www.youtube.com/watch?v=QH1yphfgfFI&feature=related. Changes in State / Phase of Matter. Compare and Contrast. Consumes Energy.

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How Do Rain Clouds Form?

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  1. How Do Rain Clouds Form? http://www.youtube.com/watch?v=1gvHpO26Xv4&feature=related http://www.youtube.com/watch?v=2sb58M1zIrY&feature=related http://www.youtube.com/watch?v=QH1yphfgfFI&feature=related

  2. Changes in State / Phase of Matter

  3. Compare and Contrast ConsumesEnergy Releases Energy Freezing Condensation Deposition • Melting • Vaporization (Evaporation) • Sublimation

  4. History In ancient times, people used to put rocks from the fire into pools of water to warm the water up The hot rock would pass energy to the cool water until they both had the same final temperature heat energy will pass from the hot object to the cool object until the two objects are the same temperature but the two objects don't necessarily have the same change in temperature

  5. When you put an ice cube in a drink, the drink immediately begins to cool down, but the ice cube will remain at 0° C until it melts completely. How is this possible?

  6. The answer is that there is more energy in liquid water at 0°C than in solid water at 0°C. • This extra energy in the liquid water is latent or hidden energy. • For the solid to liquid (or liquid to solid) phase change, this hidden energy is potential energy and is called the latent heat of fusion

  7. Changes in State of Matter Gas Vaporization Condensation Liquid Increasing Energy Melting Freezing Sublimation Solid Increasing Particle Motion

  8. Phase Changes Due to Energy Gain Melting= solid  liquid Vaporization= liquid  gas

  9. Phase Changes Due to Energy Loss Freezing= liquid  solid Condensation= gas  liquid

  10. The specific heat of liquid water is 1 calorie/gram °C, which is higher than any other common substance. A joule (J) is the unit of energy used in the International System of Units It takes 2.05 Joules/gram to raise ice by 1 degree C. It takes 335.55 J/g to convert 0 degree ice to 0 degree water. This is known as the heat of fusion It takes 4.18 J/g to raise the temperature of liquid water by 1 degree C. It takes 2257 J/g to vaporize water - that is a lot!

  11. Heat of Fusion and Vaporization Heat of Fusion Heat of Vaporization

  12. Heat of Fusion and Vaporization(with y axis equalized on both sides) Heat of Fusion Heat of Vaporization

  13. There will be a similar extra credit problem on the testMelting= solid  liquid Sample problem: How many Joules would it take to raise a 1 gram piece of ice from -1 degree C to liquid water at 1 degree C? It takes 2.05 Joules/gram to raise ice by 1 degree C. It takes 335.55 J/g to convert 0 degree ice to 0 degree water. This is known as the heat of fusion It takes 4.18 J/g to raise the temperature of liquid water by 1 degree C.

  14. Phase Changes and Steel • Melting Point: 1538°C or 2800°F • Boiling Point: 2861°C or 5182°F

  15. http://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=557http://www.explorelearning.com/index.cfm?method=cResource.dspView&ResourceID=557

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