Temperature

Temperature - Ch 17. Temperature & Heat Liu UCD Phy9B...

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Liu UCD Phy9B 07 1 Ch 17. Temperature & Heat
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Liu UCD Phy9B 07 2 17.1-3. Temperature A measure of how hot /cold an object is Temperature Scale Celsius (centigrade) ºC Fahrenheit ºF Absolute (Kelvin, Scientific work) K T in C º, Fº, or K
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Liu UCD Phy9B 07 3 Temperature Conversion T C =5/9 (T F -32º) T F =9 T C /5+32º T K = T C +273.15
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Liu UCD Phy9B 07 4 Thermometer Larger linear thermal expansion coefficient
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Liu UCD Phy9B 07 5 17-4. Thermal Expansion T L L = α 0 α− Coefficient of linear expansion ) 1 ( 0 T L L + = ___________ T V V = β 0 β− Coefficient of volume expansion ___________ Glass, β∼10 −5 / C ° Mercury, β∼10 −4 / C ° Most substances: Expand when heated Contract when cooled
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Liu UCD Phy9B 07 6 Anomalous Behavior of Water Below 4ºC Water expands as it cools from 4ºC to 0ºC, expands more upon freezing. In a pool of water, it freezes from top.
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Liu UCD Phy9B 07 7 17-5. Quantity of Heat Common units: calorie (cal): amount of heat necessary to raise the temperature of
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This note was uploaded on 02/17/2009 for the course PHY na taught by Professor Richardscalettar during the Spring '09 term at UC Davis.

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Temperature - Ch 17. Temperature & Heat Liu UCD Phy9B...

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