Heat - 17-6 Phase Change Latent Heat Phase change Solid...

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Liu UCD Phy9B 07 12 17-6. Phase Change: Latent Heat Gas Liquid Solid on Vaporizati Fusion ⎯→ Phase change: Temperature: no change
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Liu UCD Phy9B 07 13 Latent Heats Q=mL L -kcal/kg or J/kg heat of fusion L F ⎯→ Absorbs leases Re Solid Liquid Absorbs leases Re Liquid Gas heat of vaporization L V Latent heat
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Liu UCD Phy9B 07 14 17-7. Mechanisms of Heat Transfer Heat transfer: only when there is a temperature difference Conduction: need medium Convection: need medium Radiation: No medium Heat may be transferred by more than one way at the same time On a cold day, why is a piece of metal feels much colder to the touch than a piece of wood?
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Liu UCD Phy9B 07 15 Conduction Molecular collision L T T kA dt dQ H C H = = k : thermal conductivity K m W K m s J = / / Conductors: Silver 406 Copper 385 Aluminum 205 Steel
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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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Heat - 17-6 Phase Change Latent Heat Phase change Solid...

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