TAILIEUCHUNG - Lecture Thermodynamics: An engineering approach (8/e): Chapter 7 (Part 1) - Yunus A. Çengel, Michael A. Boles

Chapter 7 (part 1) - Entropy: A measure of disorder. The objectives of Chapter 7 are to: Apply the second law of thermodynamics to processes; define a new property called entropy to quantify the second-law effects; establish the increase of entropy principle; Calculate the entropy changes that take place during processes for pure substances, incompressible substances, and ideal gases. | Chapter 7 Entropy: A Measure of Disorder Study Guide in PowerPoint to accompany Thermodynamics: An Engineering Approach, 8th edition by Yunus A. Çengel and Michael A. Boles Entropy and the Clausius Inequality The second law of thermodynamics leads to the definition of a new property called entropy, a quantitative measure of microscopic disorder for a system. Entropy is a measure of energy that is no longer available to perform useful work within the current environment. To obtain the working definition of entropy and, thus, the second law, let's derive the Clausius inequality. Consider a heat reservoir giving up heat to a reversible heat engine, which in turn gives up heat to a piston-cylinder device as shown below. We apply the first law on an incremental basis to the combined system composed of the heat engine and the system. where Ec is the energy of the combined system. Let Wc be the work done by the combined system. Then the first law becomes If we

• Vật lý
• Lecture Thermodynamics
• Engineering approach
• Nhiệt động lực học
• Clausius inequality
• Reversible process
• Heat transfer on entropy
• Hóa học đại cương
• General Chemistry I
• Lecture General Chemistry I
• Chemical thermodynamics
• Zeroth Law of Thermodynamics
• First Law of thermodynamics
• Second Law of thermodynamics
• The second law of thermodynamics
• Thermodynamic cycle
• Thermal efficiency
• Companion site to accompany thermodynamics
• Energy transfer
• Thermal energy reservoirs
• Lecture Physical chemistry
• Physical chemistry
• Bài giảng Hóa lý
• Spontaneous processes
• Non spontaneous reaction
• Compressible flow
• Stagnation properties
• Conservation of energy
• Temperature and Heat
• Năng lượng nhiệt
• Nhiệt động học
• Vật lý học
• Chemical reactions
• Percent theoretical
• Percent excess air
• Phase equilibrium
• Specific gibbs function
• Simultaneous reactions
• Steady flow process
• State postulate
• Mechanical energy
• General energy analysis
• Energy transport
• Pure substances
• Properties of pure substances
• Energy analysis
• Closed systems
• Constant pressure process
• Control volumes
• Conservation of energy
• Conservation principles
• Variable specific heat method
• Closed system
• Second law
• Exergy forms
• Exergy of kinetic energy
• Exergy of potential energy
• Gas power cycles
• Carnot cycle
• Air standard assumptions
• Combined power cycles
• Rankine cycle
• Regenerative cycle
• Refrigeration cycles
• Reversed carnot refrigerator
• Heat pump
• Thermodynamic property relations
• Clapeyron equation
• Clapeyron clausius equation
• Gas mixtures
• Volume fraction
• Partial pressure
• Gas vapor mixtures
• Air conditioning
• Atmospheric air
• Organic chemistry
• Lecture Organic chemistry
• Hóa học hữu cơ
• Bài giảng Hóa học hữu cơ
• Potential energy diagrams