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Understanding Kinetic Theory of Molecules | Temperature, Expansion & Conversion Formulas

Explore the Kinetic Theory of Molecules, learn about temperature relationships, thermal expansion effects, and conversion formulas from Celsius to Kelvin and Fahrenheit. Discover how temperature affects the motion of molecules and how objects expand when heated. Find out the significance of different temperature scales in various contexts.

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Understanding Kinetic Theory of Molecules | Temperature, Expansion & Conversion Formulas

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  1. Kinetic Theory • Contents: • Concept 0 • Temperature • Thermal Expansion (Qualitative)

  2. ( ) ( ) ( ) ( ) ( ) ( ) Cold = less Ek Hot = more Ek ((( ))) (( )) (( )) (( )) ( ) ( ) Kinetic Theory 101 The higher the temperature, the faster the molecules Temperature is proportional toaverage kinetic energy Average(1/2mv2) = 3/2kT - (not in data packet) Demo - show molecular motion device TOC

  3. Temperature Water Boil Freeze Celsius 100 oC 0 oC Fahren. 212 oF 32 oF 0 oF Kelvins 373.15 K 273.15 K 0 K Not degrees K What 0 oF and 0 K mean Formulas for conversion Celsius: 30,20,10,0 TOC

  4. Temperature 1 | 2 | 3 TOC

  5. What is 37 oC in Kelvins? Kelvins = 273.15 + 37 = 310.15 K = 310. K :-) W 310. K

  6. What is 77.35 K in oC 273.15 K = 0 oC So it would be 77.35 - 273.15 = -195.80 oC (Boiling point of Liquid N2) W -195.80 oC

  7. What is 128 oC in Kelvins? Kelvins = 273.15 + 128 = 401.15 K = 401 K :-) W 401 K

  8. What is 38 oF in oC • it’s 6 oF above freezing • 6*5/9 = 3.3 oC W 3.3 oC

  9. ( ) ( ) ( ) ( ) ( ) ( ) Cold = less Ek Hot = more Ek ((( ))) (( )) (( )) (( )) ( ) ( ) Thermal Expansion Hotter is bigger Demo - ball and hoop, bi-metal TOC

  10. Railroad rails Non-Pyrex glassware Hiroshima exfoliation of stone buildings

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