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

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Presentation transcript:

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

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

Temperature TOC Water Boil Freeze Celsius 100 o C 0 o C Fahren. 212 o F 32 o F 0 o F Kelvins K K 0 K Not degrees K What 0 o F and 0 K mean Formulas for conversion Celsius: 30,20,10,0

Temperature 11 | 2 | 323 TOC

Kelvins = = K = 310. K :-) 310. K W What is 37 o C in Kelvins?

K = 0 o C So it would be = o C (Boiling point of Liquid N 2 ) o C W What is K in o C

Kelvins = = K = 401 K :-) 401 K W What is 128 o C in Kelvins?

it’s 6 o F above freezing 6*5/9 = 3.3 o C 3.3 o C W What is 38 o F in o C

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

Railroad rails Non-Pyrex glassware Hiroshima exfoliation of stone buildings

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