Pressure-volume-temperature behavior

The reactor volume is taken as the volume of the reactor physically occupied by the reacting fluids. It does not include the volume occupied by agitation devices, heat exchange equipment, or head-room above liquids. One may arbitrarily select the temperature, pressure, and even the state of aggregation (gas or liquid) at which the volumetric flow rate to the reactor will be measured. For design calculations it is usually convenient to choose the reference conditions as those that prevail at the the inlet to the reactor. However, it is easy to convert to any other basis if the pressure-volume-temperature behavior of the system is known. Since the reference volumetric flow rate is arbitrary, care must be taken to specify precisely the reference conditions in order to allow for proper interpretation of the resultant space time. Unless an explicit statement is made to the contrary, we will choose our reference state as that prevailing at the reactor inlet and emphasize this choice by the use of the subscript zero. Henceforth,... 

Since both the osmotic pressure of a solution and the pressure-volume-temperature behavior of a gas are described by the same formal relationship of Equation (25), it seems plausible to approach nonideal solutions along the same lines that are used in dealing with nonideal gases. The behavior of real gases may be written as a power series in one of the following forms for n moles of gas ... 

Malbrunot, P.F., Meunier, P.A., Scatena, G.M. (1968) Pressure-volume-temperature behavior of difluoromethane. J. Chem. Eng. Data 13, 16-21. 

Generally the preferred data source is experimental measurement. Only in rare cases are prediction methods able to give more accurate estimates than a carefully executed experiment. Therefore, one of the major objectives of this Handbook is to provide comprehensive data bases for the phase equilibria of polymer-solvent systems and pressure-volume-temperature behavior of pure polymers. Thus, data have been compiled from extensive literature searches. These data cover a wide range of polymers, solvents, temperatures, and pressures. The data have been converted into consistent units and tabulated in a common format. Methods of evaluating and formatting these data banks have been established by the DIPPR Steering Committee for Project 881 and the Project Investigators. 

The experimentally observed similarity of the pressure-volume-temperature behavior of many fluids can be represented by the principle of corresponding states (PCS), according to which various substances behave in the same way when expressed on suitable reduced scales. Thus the pVT surfaces of different substances superimpose upon reduction with appropriate scale factors. The reducing scale factors commonly employed are the properties of the fluid at a singular point such as the critical point. On the reduced scale, one general pVT relationship is followed by a number of substances, i.e., p, is the same function of and v, where the subscript r denotes a reduced dimensionless quantity and the subscript c the quantity at the critical point ... 

Ideal gas. A hypothetical gas whose pressure-volume-temperature behavior can be completely accounted for by the ideal gas equation. (5.4)... 

CAP Capt, L. and Kamal, M.R., The pressure-volume-temperature behavior of polyethylene melts, Intern. Polym. Process., 15, 83, 2000. 

SA1 Sato, Y., Inohara, K., Takishima, S., Masuoka, H., Imaizmni, M., Yamamoto, H., and Takasugi, M., Pressure-volume-temperature behavior of polylactide, poly(butylene succinate), and poly(butylene succinate-co-adipate), Polym. Eng. Set., 40, 2602, 2000. 

Chang, R. Y, Chen, C. H., and Su, K. S., Modifying the Tait equation with cooling-rate effects to predict the pressure-volume-temperature behaviors of amorphous polymers modeling and experiments, Polym. Eng. Sci., 36, 1789-1795 (1996). 

PRESSURE-VOLUME-TEMPERATURE BEHAVIOR OF NYLON 610. HAUGWA GRISKEYRG J APPLIED POLYMER SCI... 

Zander M. Pressure-volume-temperature behavior of chlorodifluoromethane in the gaseous and liquid states.—In Proc. fourth sympos. thermophys. prop., ASME, N.Y., 1968, p. 114—123. 

Jyotishkumar, P., Pionteck, J., Ozdilek, C., Moldenaers, P., Cvelbar, U., Mozetic, M.. and Thomas, S. (2011) Rheology and pressure-volume-temperature behavior of the thermoplastic poly (acrylonitrile-butadiene-styrenej-modified epoxy-DDS system during reaction induced phase separation, Soji Matter, 7 (16), 7248-7256,... 

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