while, a molecule in the liquid phase gains enough kinetic energy to break away from the liquid phase and enter the gas phase. Likewise, every once in a while...

Gas is one of the four fundamental states of matter. The others are solid, liquid, and plasma. A pure gas may be made up of individual atoms (e.g. a noble...

called the carrier gas, and passing the gas through a stationary phase. The mobile phase is usually an inert gas or an unreactive gas such as helium, argon...

of the fixed pattern of the solid phase and enter the liquid phase. A similar concept applies to liquid–gas phase changes. Water is an exception which...

Gas phase ion chemistry is a field of science encompassed within both chemistry and physics. It is the science that studies ions and molecules in the...

(Commonwealth English; see spelling differences) is a substance in the gas phase at a temperature lower than its critical temperature, which means that...

the reaction between the chemical species concerned and a proton in the gas phase: A − + H + ⟶ HA {\displaystyle {\ce {A- + H+ -> HA}}} B + H + ⟶ BH + {\displaystyle...

forms an intensely blue complex with triiodide. Gas phase titrations are titrations done in the gas phase, specifically as methods for determining reactive...

and gas, and in rare cases, plasma. A phase of a thermodynamic system and the states of matter have uniform physical properties. During a phase transition...

of space). The continuous phase may be either gaseous or a liquid. The disperse phase can consist of a solid, liquid or gas. Two general topologies can...

all the noble gases (helium, neon, argon, krypton, xenon, and radon), though all chemical elements will be monatomic in the gas phase at sufficiently...

Condensation is the change of the state of matter from the gas phase into the liquid phase, and is the reverse of vaporization. The word most often refers...

mobility in gas phase is called ion mobility spectrometry, in liquid phase it is called electrophoresis. When a charged particle in a gas or liquid is...

solid→liquid, solid→gas and liquid→gas. However, only solid→liquid and liquid→solid phase changes are practical for PCMs. Although liquid–gas transitions have...

subsequently the gas bubbles drive the oil to the surface. The bubbles then reach critical saturation and flow together as a single gas phase. Beyond this...

not physical deposition. This takes place not in vacuum, but from the gas phase at moderate pressures (10 to 760 Torr). As such, this technique is preferred...

called desublimation), in which a substance passes directly from a gas to a solid phase, without passing through the liquid state. All solids sublime, though...

A gas–liquid contactor is a particular chemical equipment used to realize the mass and heat transfer between a gas phase and a liquid phase. Gas–liquid...

Another important advantage of ESI is that solution-phase information can be retained into the gas-phase. The electrospray ionization technique was first...

This is a gas-phase reaction of phosphorus vapor, above the solid, with oxygen producing excited states of (PO)2 and HPO. Another gas phase reaction is...

volatile, which suggests noble gas-like properties.) The noble gases—including helium—can form stable molecular ions in the gas phase. The simplest is the helium...

antifluorite structure, anions and cations are swapped, such as Be2C. The gas phase is noteworthy for failing the predictions of VSEPR theory; the CaF2 molecule...

Typical phases are solids, liquids and gases. A phase is a form of matter that is homogeneous in chemical composition and physical state. Typical phases are...

Deposition is the phase transition in which gas transforms into solid without passing through the liquid phase. Deposition is a thermodynamic process....

displaced by CO2 in the effluent gas. Hydrolysis of the biodegradable fraction of the solid waste begins in the acid formation phase, which leads to rapid accumulation...

components that have entered the gas phase. In many mass spectrometry ionization methods, the sample must be in the liquid or gas phase for the ionization method...

gas phase overcomes the intermolecular forces. As a given quantity of matter always has a higher entropy in the gas phase than in a condensed phase (...

Significantly, gas hydrates can even be formed in the absence of a liquid phase. Under that situation, water is dissolved in gas or in liquid hydrocarbon phase. In...

grouped into gas phase polymerization, bulk polymerization and slurry polymerization. All state-of-the-art processes use either gas-phase or bulk reactor...

commercially used in its solid form, commonly known as "dry ice". The solid-to-gas phase transition occurs at 194.7 Kelvin and is called sublimation. The symmetry...