2013-3-6 Second Law of Thermodynamics Alternative Statements There is no simple statement that captures all aspects of the second law.Several alternative formulations of the second law are found in the technical literature.Three prominent ones are: Clausius Statement Kelvin-Planck Statement Entropy Statement Second Law of Thermodynamics Alternative Statements The focus of Chapter 5 is on the Clausius and Kelvin-Planck statements. The Entropy statement is developed and applied in Chapter 6. Like every physical law,the basis of the second law of thermodynamics is experimental evidence.While the three forms given are not directly demonstrable in the laboratory, deductions from them can be verified experimentally,and this infers the validity of the second law statements. 4 2013-3-6 4 Second Law of Thermodynamics Alternative Statements ►Clausius Statement ►Kelvin-Planck Statement ►Entropy Statement There is no simple statement that captures all aspects of the second law. Several alternative formulations of the second law are found in the technical literature. Three prominent ones are: Second Law of Thermodynamics Alternative Statements ►The focus of Chapter 5 is on the Clausius and Kelvin-Planck statements. ►The Entropy statement is developed and applied in Chapter 6. ►Like every physical law, the basis of the second law of thermodynamics is experimental evidence. While the three forms given are not directly demonstrable in the laboratory, deductions from them can be verified experimentally, and this infers the validity of the second law statements