400 R to 300 R. Cliou from and AS for the process. 4.57 The three laws of thermodynamics are sometimes stated colloquially as follows: First law: You cannot get something for nothing; Second law: The best you can do is break even; Third law: You cannot break even. Provide a scientific basis for each of these statements. Hint: One consequence of the third law is that it is im- possible to attain the absolute zero of temperature.) 4.58 boiling point, in kelvins, of mercury. What assumptions must you make to do the calculation? Use the following data to determine the normal Hg(l): Af H 0 (by definition) = 77.4 J K-1 mol-1 ArF-60.78 kJ mol -1 Hig(g): 'S。= 174.7 J K-1 mol-l 4.59 Trouton's rule states that the ratio of the molar enthalpy of vaporization of a liquid to its boiling point in kelvins is approximately 90 J K- mol-. (a) Use the following data to show that this is the case and explain why Trouton's rule holds true. Benzene Hexane 80.1 68.7 31.0 30.8

400 R to 300 R. Cliou from and AS for the process. 4.57 The three laws of thermodynamics are sometimes stated colloquially as follows: First law: You cannot get something for nothing; Second law: The best you can do is break even; Third law: You cannot break even. Provide a scientific basis for each of these statements. Hint: One consequence of the third law is that it is im- possible to attain the absolute zero of temperature.) 4.58 boiling point, in kelvins, of mercury. What assumptions must you make to do the calculation? Use the following data to determine the normal Hg(l): Af H 0 (by definition) = 77.4 J K-1 mol-1 ArF-60.78 kJ mol -1 Hig(g): 'S。= 174.7 J K-1 mol-l 4.59 Trouton's rule states that the ratio of the molar enthalpy of vaporization of a liquid to its boiling point in kelvins is approximately 90 J K- mol-. (a) Use the following data to show that this is the case and explain why Trouton's rule holds true. Benzene Hexane 80.1 68.7 31.0 30.8

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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8.8
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