Note: The data in the table above are based on standard conditions (14.7 psia @ 60 F) VAPOR PRESS

THERMODYNAMIC PROPERTIES OF FLUIDS What about friends, in the previous section explained in thermodynamic processes as applied to this model very common use in the oil industry, such as a pneumatic pump. http://procesostermodinamicosaplicacion.blogspot.com/ (to see previous article). This time we will talk about the thermodynamic properties of fluids, for which I will mention the usual fluid within the oil industry because they are the components that are commonly found. Process engineering is very interesting to know how to determine the properties of solids, 12v extension cord liquids and gases to apply the Laws of Thermodynamics. The thermodynamic properties are features that can be observed, measured or quantified in the substances. The amount and type of properties that can be set for a system depend on the type of observation that is established for the analysis of the system. For example if the approach used is the macroscopic properties can be set as temperature, 12v extension cord pressure, energy, internal 12v extension cord energy and enthalpy 12v extension cord and others, that in no way would be established 12v extension cord using the microscopic approach. Such properties are classified as extensive or intensive depending on their behavior by varying the length or mass of the fluid. Some properties are quantified for the entire amount of matter in the system, that is, for its size, as the total volume 12v extension cord it occupies, the energy contained within, even the substance (mole) or mass (m). These properties change value to change the extension 12v extension cord of the system are called extensive.
Other properties do not depend on the total amount of mass in the system 12v extension cord do not change with the change in its length, but if they indicate their repeatability in each system extension unit, in most cases, indicate the intensity with which it has a extensive property. 12v extension cord These are called intensive properties and among them are the pressure, temperature and all properties per unit mass (specific) and specific gravity. Because these intensive properties are invariant with the extension of the system, allowing a direct relationship with the state of substances. There are three common ways to meet these properties 1) Property Tables 2) Figures and Diagrams Thermodynamic 3) Correlations and Equations The main properties that we analyze and determine for engineering applications are shown in Table 1.
Note: The data in the table above are based on standard conditions (14.7 psia @ 60 F) VAPOR PRESSURE This is the pressure at a given temperature at which two phases can coexist in equilibrium (by a period "long"). Design engineers (PROCESS ENGINEERING) we must realize the concepts of vapor pressure over liquid saturation pressure and vapor pressure over solid (sublimation pressure). 12v extension cord
Coordinates CRITICAL POINT pressure (Pc) and temperature (T c) characteristics of a fluid pressure higher to Pc, you can go from vapor to liquid by simple cooling, and temperatures above Tc, you can go from vapor to liquid by Simple 12v extension cord compression. Coordinates 12v extension cord triple 12v extension cord point pressure and temperature to which co-exist in equilibrium phases gas, liquid and solid. 12v extension cord The triple point is a characteristic property of each substance. CLOSED SYSTEM AND SYSTEM ADIABATIC 12v extension cord closed system is a thermodynamic system where there is no exchange of matter between him and his surroundings. Adiabatic system is a thermodynamic system where there is heat interaction between itself and its surroundings. THERMODYNAMIC SYSTEM amount of matter of fixed mass and identity is taken as a basis for a given study ... which is outside the system is known as surroundings or environment. The heat of vaporization heat of evaporation decreases with increasing T. At the critical point ΔHvap = 0. It is important to note that there is no heat of vaporization at temperatures above Tc. In the next chapter we will see some applications (in the oil industry) of the thermodynamic properties discussed here, where they will realize that the process engineers must be clear about the concepts of vapor pressure over liquid saturation pressure and pressure steam on solid (sublimation pressure). Until next.