Cengel ch11
13
CHAPTER 11 Thermodynamic Property Relations
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Transcript of Cengel ch11
CHAPTER
11
Thermodynamic Property Relations
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
11-1
FIGURE 11-1The derivative of a function at a specified point represents the slope of the function at that point.
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
FIGURE 11-3Geometric representation of partial derivative (/)y.
11-2
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11-3
FIGURE 11-4Geometric representation of total derivative dz for a function z (x, y).
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
11-4
FIGURE 11-5Geometric representation of the disturbance discussed in Example 11–2.
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11-5
FIGURE 11-6Demonstration of the reciprocity relation for the function z + 2xy - 3y2z = 0.
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11-6
FIGURE 11-8Maxwell relations are extremely valuable in thermodynamic analysis.
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11-7
FIGURE 11-9The slope of the saturation curve on a P-T diagram is constant at a constant T or P.
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11-8
FIGURE 11-10The volume expansivity (also called the coefficient of volumetric expansion) is a measure of the change in volume with temperature at constant pressure.
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11-9
FIGURE 11-13The development of an h = constant line on a P-T diagram.
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11-10
FIGURE 11-14Constant-enthalpy lines of a substance on a T-P diagram.
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11-11
FIGURE 11-16An alternative process path to evaluate the enthalpy changes of real gases.
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.FIGURE 11-17An alternative process path to evaluate the entropy changes of real gases during process 1-2.
11-12
