However considering that entropy is a property and

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Unformatted text preview: py change for this process. However, considering that entropy is a property and the values of properties depend on the state of a system, we can argue that the entropy change of the partition is zero since the partition appears to have undergone a steady process and thus experienced no change in its properties at any point. We base this argument on the fact that the temperature on both sides of the partition and thus throughout remained constant during this process. Therefore, we are justified to assume that Spartition 0 since the entropy (as well as the energy) content of the partition remained constant during this process. The entropy change for each reservoir can be determined from Eq. 7–6 since each reservoir undergoes an internally reversible, isothermal process. (a) For the heat transfer process to a sink at 500 K: cen54261_ch07.qxd 11/18/03 9:57 AM Page 281 281 CHAPTER 7 Ssource Ssink Qsource 2000 kJ 2.5 kJ/K Tsource 800 K Qsink 2000 kJ 4.0 kJ/K Tsink 500 K and Sgen Stotal Ssourc...
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This document was uploaded on 11/28/2012.

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