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Unformatted text preview: 9/4/2018 The Laws of Thermodynamics | Boundless Chemistry Boundless Chemistry Thermodynamics The Laws of Thermodynamics … 1/8 9/4/2018 The Laws of Thermodynamics | Boundless Chemistry The Three Laws of Thermodynamics The laws of thermodynamics de ne fundamental physical quantities (temperature, energy, and entropy) that characterize thermodynamic systems. LEARNING OBJECTIVES Discuss the three laws of thermodynamics. KEY TAKEAWAYS Key Points The rst law, also known as Law of Conservation of Energy, states that energy cannot be created or destroyed in an isolated system. The second law of thermodynamics states that the entropy of any isolated system always increases. The third law of thermodynamics states that the entropy of a system approaches a constant value as the temperature approaches absolute zero. Key Terms absolute zero: The lowest temperature that is theoretically possible. entropy: A thermodynamic property that is the measure of a system’s thermal energy per unit of temperature that is unavailable for doing useful work. … 2/8 ...
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