Physical principles of RT Part 1.txt

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Author:
MagusB81
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121341
Filename:
Physical principles of RT Part 1.txt
Updated:
2011-12-06 18:07:14
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RESP 130
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RESP 130
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  1. Duh what are the primary states of matter
    Solid, liquid, and gas
  2. The energy of possition
    Potential energy
  3. The energy of motion
    Kinetic energy
  4. Equation to convert celcius to kelvin
    C + 273
  5. Equation to convert fahrenheit to celcius
    5/9 ( F - 32)
  6. First law of thermodynamics
    Energy can neither be createx or destroyed, only transformed in nature.
  7. Equation for energy transfer
    U=E+W
  8. U is
    The internal engery of an object
  9. E is
    The energy transferred to or from an object (heat)
  10. W is
    The external work performed on the object
  11. The four main ways to effext heat transfer
    • 1. Conduction
    • 2. Convection
    • 3. Radiation
    • 4. Evaporation/condensation
  12. The main means for heat transfer between objects. Directly transferred between hot and cold molecules
    Conduction
  13. It invloves mixing of fluid molecules at differnt temperatures. Both liquids and gases are effect. Air is heated in one location and then moved to another.
    Convection
  14. Heat transfer that occurs without direct physical contact. Suxh as the sun warming the earth.
    Radiation
  15. The change of state from liquid to gas and the process requires heat energy. Must come from it surroundings.
    Vaporization
  16. Is a form of vaporization where heat is taken from the surrounding air of the liquid, and cools it. Nonheaded humidifiers cool the gas above.
    Evaporation
  17. The opposite of evaporation. Gaseous vapor turns back into a liquid and heat given bqck to the surroundings.
    Condensation
  18. The change of heat from the solid to liquid state.
    Melting
  19. The extra heat needed to completely change a solid into a liquid.
    Latent heat of fusion
  20. The opposite of melting. During this process heat energy is transfered from a liquid back to the enviroment.
    Freezing

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