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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