Reverse Condensation definition of Reverse Condensation in the Free Online Encyclopedia.

Reverse Condensation

the precipitation near the critical point of the liquid phase in a two-component or multicompo-nent gaseous system after an isothermal pressure drop. The phase diagram of such a system with variable temperature and pressure is presented in Figure 1.

Figure 1. Phase diagram of a two-component system with fixed composition near the liquid-vapor critical point: (C) critical point, (7) temperature, (p) pressure

In contrast to the phase diagrams of pure substances, in which the boiling curve A₁C₁ (ending at the critical point C) is the interface of the liquid and vapor phases, the phase diagram of a mixture has the form of the loop-shaped curve ABC; within the area bordered by ABC the mixture is in both the liquid and vapor states. The boiling curve AC and condensation curve CB of the mixture join at the critical point C, where the difference in the properties of the two phases disappears.

After an isothermal pressure drop, for example, along the isotherm hd in the region of the temperatures T_c and T_m, drops of liquid begin to precipitate from the homogeneous gas phase at point h. The amount of liquid gradually increases to a maximum at point F and then begins to decrease, finally disappearing entirely at point d. This process is called isothermal reverse condensation, or reverse condensation of the first order. The area bounded by CMG, in which the condensate precipitates upon a reduction in p, is called the region of reverse condensation; “reverse” indicates the return of the system to the two-phase state. The phenomenon of reverse isothermal condensation has found broad practical application in the extraction of gas condensate from gas-condensate fields of natural gas.

When the isobaric line intersects the two-phase region in the pressure interval from p_c to p_m for example, along line ab, vapor bubbles begin to appear in a homogeneous liquid mixture at point a. The amount of vapor initially increases with T and then decreases, and the system once again becomes liquid at point b. This process is called reverse evaporation, or reverse condensation of the second order.

REFERENCES

Karapet’iants, M. Kh. Khimicheskaia termodinamika, 2nd ed. Moscow-Leningrad, 1953. Pages 317–18.
Rukovodstvo po dobyche, transportu i pererabotke prirodnogo gaza. Moscow, 1965. Pages 75–6.

B. V. DEGTIAREV

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No references found	The silicate phase de-polymerization occurring between 1 and 2 years is understandable in terms of the reverse condensation reaction. Studies of the Aging of Nafion[R]/Silicate Nanocomposites Using ... by YOUNG, S. K.; JARRETT, W. L.; MAURITZ, K. A. / Polymer Engineering and Science	Reverdy, Pierre Revere Revere, Joseph Warren Revere, Paul Reverence reverend reverie Reversal reversal film reversal of dip reversal process reversal spectrum reversal speed reversal temperature reverse Reverse Address Resolution Protocol Reverse ARP reverse bevel reverse bias reverse bonded-phase chromatography reverse Brayton cycle reverse Carnot cycle reverse cell reverse circulation drilling reverse code dictionary Reverse Condensation reverse current reverse curve reverse deionization Reverse Dictionary reverse direction reverse DNS reverse drawing reverse engineer reverse engineering reverse fault reverse feedback reverse flange reverse genetics reverse graft reverse key reverse lay reverse mutation reverse osmosis reverse passive anaphylaxis reverse pinocytosis reverse pitch reverse polarity reverse Polish notation reverse polish syntax reverse power	reverse Brayton cycle Reverse Brazil Nut Problem Reverse C Compiler Reverse Capture the Flag Reverse Carlson Surge Device reverse Carnot cycle reverse cell Reverse Cerebral Steal Reverse Channel Control Order Wire Reverse charge call Reverse charging Reverse Cholesterol Transport Reverse Circular Disk of Scatterers Model Reverse Circulation Reverse Circulation Drilling Reverse Circulation Drilling Reverse Circulation Junk Basket Reverse circumcision Reverse circumcision Reverse circumcision reverse code dictionary Reverse Code Engineering reverse Colles' fracture Reverse Common Control Channel Reverse Common Signaling Channel Reverse commute Reverse compiler Reverse Condensation Reverse conducting thyristor Reverse Control Channel Reverse conversion Reverse Convertible Bond Reverse Convertible Note Reverse Convertible Note Reverse Convertible Note Reverse Convertible Notes Reverse Corneal Allograft Reaction Reverse course Reverse Course and Advise Reverse Crescent Kick Reverse Cross Blot Hybridization Reverse Cross-Site Request reverse crush Reverse Crushes Reverse Culture Shock Reverse Cumulative Frequency Distribution reverse current Reverse Current Circuit Breaker Reverse Current Cut Out Reverse Current Cut-out Relay Reverse curve Reverse curve Reverse curve reverse cutting needle reverse cutting needle reverse cutting needle reverse cutting needle Reverse Data Driven Access Control

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The silicate phase de-polymerization occurring between 1 and 2 years is understandable in terms of the reverse condensation reaction.

Studies of the Aging of Nafion[R]/Silicate Nanocomposites Using ... by YOUNG, S. K.; JARRETT, W. L.; MAURITZ, K. A. / Polymer Engineering and Science

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Reverse Condensation

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