MSE 308 Problem Set 7 Solutions

MSE 308 Problem Set 7 Solutions - MSE 308 Thermodynamics of...

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MSE 308 Dept. of Materials Science & Engineering Thermodynamics of Materials Spring 2005/Bill Knowlton Problem Set 7 Solutions 1. The following reaction: Pb + ½ O 2 = PbO is on page 119-123 of Gaskell. Repeat this problem using the approach: .. rxn prod react HH H ∆= by doing the following: a. Provide a list of materials parameters necessary to do the problem and similar to the one I handed out in class. Table 6.1 on page 121 of Gaskell gives much of this information. b. Draw a schematic of H versus T diagram. H T 600K 2023K 1159K PbO (s) PbO (l) Pb (s) + 1/2O 2(g) Pb (l) + 1/2O 2(g) Pb (g) + 1/2O 2(g) H Pb s->l H Pb l->g H PbO2 l->g
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MSE 308 Dept. of Materials Science & Engineering Thermodynamics of Materials Spring 2005/Bill Knowlton c. Determine at a temperature of 1300 K. . prod H Note: that we do not have the necessary data to determine , or Hrxn at 1300K. We have the necessary data for temperatures up to 1159K. Hence, the calculations will be based on finding at 1159K.
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MSE 308 Problem Set 7 Solutions - MSE 308 Thermodynamics of...

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