Microsoft Word - Cengel and Boles TOC _2-03-05_.doc
(for P1 atm). A vapor that is not about to condense(i.e., not a saturated vapor) is called a superheated vapor.Therefore, water ...
practically all substances. A partial listing of such a table is given in Table 3–1 for water. This table indicates that the pre ...
drops by a little over 3°C. Note that the atmospheric pressure at a location, and thus the boiling temperature, changes slightly ...
from the products to be cooled. The heat of vaporization during evaporation is absorbed from the products, which lowers the prod ...
ture (179.9°C) at this pressure. Second, the specific volume of the saturated liquid is larger and the specific volume of the sa ...
has occurred. Above the critical state, there is no line that separates the compressed liquid region and the superheated vapor r ...
Chapter 3 | 121 P Critical point line liquid Saturated line vapor Saturated T 2 = const. > T 1 T 1 = const. COMPRESSED LIQUID ...
the solid–liquid saturation region. The T-vdiagrams look very much like the P-vdiagrams, especially for substances that contract ...
rays would never reach these ice layers, and the bottoms of many rivers, lakes, and oceans would be covered with ice at times, s ...
substances at high pressures can exist in the liquid phase at temperatures below the triple-point temperature. For example, wate ...
The P-v-TSurface The state of a simple compressible substance is fixed by any two indepen- dent, intensive properties. Once the ...
viewed as the independent variables (the base) and Pas the dependent vari- able (the height). All the points on the surface repr ...
or, (3–2) Both the total enthalpy Hand specific enthalpy hare simply referred to as enthalpy since the context clarifies which o ...
128 | Thermodynamics EXAMPLE 3–1 Pressure of Saturated Liquid in a Tank A rigid tank contains 50 kg of saturated liquid water at ...
1b Saturated Liquid–Vapor Mixture During a vaporization process, a substance exists as part liquid and part vapor. That is, it i ...
to imagine that the two phases are mixed well, forming a homogeneous mixture (Fig. 3–35). Then the properties of this “mixture” ...
Chapter 3 | 131 < < Sat. liquid vf Sat. liquid vg P or T vf vf v vg vg v FIGURE 3–37 The vvalue of a saturated liquid–vapo ...
Property tables are also available for saturated solid–vapor mixtures. Properties of saturated ice–water vapor mixtures, for exa ...
Compared to saturated vapor, superheated vapor is characterized by Lower pressures (PPsatat a given T) Higher tempreatures (TT ...
In the absence of compressed liquid data, a general approximation is to treat compressed liquid as saturated liquid at the given ...
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