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Exploring Thermodynamics: Concepts and Laws

Discover the study of heat, energy transformation, and laws of thermodynamics. Learn about absolute zero, the first and second laws, heat engines, entropy, and more in this informative guide.

magdalena-fajardo
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Exploring Thermodynamics: Concepts and Laws

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  1. Important Terms & Notes Conceptual Physics Mar. 11, 2014

  2. Thermodynamics • The study of heat and its transformation into Mechanical Energy.

  3. Absolute Zero • The temperature at which a substance has no kinetic energy per particle (thermal) to give up. • This temperature corresponds to 0° K or -273 ° C.

  4. First Law of Thermodynamics • Heat added to a system is transformed into an equal amount of some other form of energy. • A version of the Law of Energy Conversion ΔQ = ΔEi + W

  5. Adiabatic • The term applied to the expansion or compression of a gas occurring without the gain or loss of heat.

  6. Second Law of Thermodynamics • Heat will never of itself flow from one object to another of higher temperature. • Heat will not flow from Cold to Hot without work being performed.

  7. Heat Engine A Device that Changes Internal Energy into Mechanical Energy

  8. Carnot Efficiency • The Ideal maximum percentage of input energy that can be converted into work in a heat engine. • Ideal Efficiency = (Thot – Tcold)/Thot

  9. Entropy • A measure of the amount of disorder in a system. ΔS = Δ Q/T

  10. System • A group of objects, substances or processes that can perform a function

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