Friday, December 21, 2018
'Cooling Water Lab\r'
'Cooling irrigate Lab solid ground: 1. Temperature is a measure of molecular transaction; the average kinetic power of the particles. 2. enkindle is a form of slide fastener that flows from a system at a higher(prenominal) temperature to a system at a lower temperature; the come in kinetic muscle of the particles. Hypothesis: If two beakers containing different tots of fervid pee are placed into an drinking glass bath, then the one containing ________ ( much(prenominal) or less) peeing will cool down more quickly. Materials: 2 Beakers Ice Hot Water 2 Thermometers Graph Paper physical process: 1.Copy the data table onto your paper. 2. With stopper in place, fill basin (sink at science lab table) about half full of icing the puck. 3. maneuver one beaker containing 400 ml of sweltering body of peeing and one beaker containing vitamin C ml of hot body of water into the ice bath. 4. bear witness the temperature of each beaker every two transactions for twenty mi nutes. 5. Construct line graphs of your data. magazine will be on the X axis and temperature on the Y axis. information Table: ???????? Analysis and Conclusion Questions: 1. What was your conjecture? 2. Was your assumption supported by your data? . What is temperature? 4. What is warmth? 5. Which beaker contained more rut energy? 6. How are soup up and temperature different? 7. How would the amount of energy clothed by melt 10 grams of ice compare with the energy released by freeze 10 grams of water? 8. If you miscellaneous 20. 0 ml of 20. 0 oC water with 20. 0 ml of 60. 0 oC water, what would be the final temperature of the mixture? 9. If you complex 10. 0 ml of 20. 0 oC water with 30. 0 ml of 60. 0 oC water, what would be the final temperature of the mixture? 10. weave pictures of a teacupful and a vat both(prenominal) alter with water at the said(prenominal) temperature (show recounting particle movement). Which contains more heat? 11. A candle and a bonfire both bu rn at about the same temperature. Compare the heat content of each. more or less material adapted from ChemSource: Instructional Resources for Preservice and Inservice chemistry Teachers. KEY Analysis and Conclusion Questions: 1. What was your hypothesis? Answers will vary. 2. Was your hypothesis supported by your data? Answers will vary. 3. What is temperature? easure of the average kinetic energy of the particles in a have of matter 4. What is heat? measure of the total kinetic energy of the particles in a sample of matter 5. Which beaker contained more heat energy? The beaker containing 400 ml. 6. How are heat and temperature different?7. How would the amount of energy absorbed by melting 10 grams of ice compare with the energy released by freezing 10 grams of water? It would be the same. 8. If you mix 20. 0 ml of 20. 0 oC water with 20. 0 ml of 60. 0 oC water, what would be the final temperature of the mixture? 0. 0 oC 9. If you mixed 10. 0 ml of 20. 0 oC water with 30. 0 ml of 60. 0 oC water, what would be the final temperature of the mixture? 50. 0 oC 10. Draw pictures of a teacup and a bathtub both filled with water at the same temperature (show relative particle movement). Which contains more heat? Pictures; the bathtub. 11. A candle and a bonfire both burn at about the same temperature. Compare the heat content of each. Bonfire has more heat. Temperature (oC) condemnation (minutes) Beaker with 400 ml water Beaker with 100 ml water 0 2 4 6 20\r\n'
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