Category
page 2Physical chemistry
Van 't Hoff factor
abnormal molecular mass
isotopic labeling
technique to follow reactions by using atomic isotopes
phase-change material
substance with high latent heat of melting or solidifying

monolayer
A monolayer is a single, closely packed layer of entities, commonly atoms or molecules.
Monolayers can also be made out of cells. Self-assembled monolayers form spontaneously on surfaces. Monolayers of layered crystals like graphene and molybdenum disulfide are generally called 2D materials.
Butler–Volmer equation
equation characterising electrochemical kinetics
Ostwald ripening
process in which small crystals preferentially dissolve and re-precipitate onto larger crystals over time
Tafel equation
equation relating the rate of an electrochemical reaction to the overpotential
Diamond anvil cell
high-pressure device used in scientific experiments
Brunauer–Emmett–Teller theory
explanation of the process of gas molecules adhering to a solid surface, which is the basis for an important analytical technique allowing the measurement of the surface area of various materials
radial distribution function
description of particle density in statistical mechanics
dynamic light scattering
technique for determining size distribution of particles
Eyring equation
equation used in chemical kinetics to describe changes in the rate of a chemical reaction with temperature
extent of reaction
difference between equilibrium and initial amount of a substance, divided by its stoichiometric number
microchannel plate detector
detection single parties and photons
coalescence
process by which two phases merge to form a larger one with a lower total surface area
Marcus theory
explanation for the rates of electron transfer reactions
bioaerosol
Bioaerosols (short for biological aerosols) are a subcategory of particles released from terrestrial and marine ecosystems into the atmosphere. They consist of both living and non-living components, such as fungi, pollen, bacteria and viruses. Common sources of bioaerosols include soil, water, and sewage.

Cryochemistry
Cryochemistry is the study of chemical interactions at temperatures below . It is derived from the Greek word cryos, meaning 'cold'. It overlaps with many other sciences, including chemistry, cryobiology, condensed matter physics, and even astrochemistry.
reaction quotient
function of the activities or concentrations of the chemical species involved in a chemical reaction
Goldman equation
generalization of the Nernst equation for the membrane potential
partial molar quantity
deposition
chemical process of molecules settling out of solution

Kelvin equation
equation that describes the change in vapour pressure due to a curved liquid–vapor interface
molar conductivity
conductivity per molar concentration of electrolyte
chemisorption
Chemisorption is a kind of adsorption which involves a chemical reaction between the surface and the adsorbate. New chemical bonds are generated at the adsorbent surface. Examples include macroscopic phenomena that can be very obvious, like corrosion, and subtler effects associated with heterogeneous catalysis, where the catalyst and reactants are in different phases. The strong interaction between the adsorbate and the substrate surface creates new types of electronic bonds.
Liesegang rings
annular figures or bands formed by chemical precipitation
density anomaly
unusual physicochemical process in which some materials contract upon heating
electrolytic conductivity
measure of the ability of a solution containing electrolytes to conduct electricity
steady state
central term in chemical kinetics
DLVO theory
theoretical model for aggregation of aqueous dispersions
volume (thermodynamics)
volume as a thermodynamic quantity; extensive parameter for describing its thermodynamic state
Nernst–Planck equation
equation used to calculate the electromigration of ions in a fluid

bioceramic
thumb|300px|A porous bioceramic granule of an orthobiologic calcium composition manufactured by Cam Bioceramics
Bioceramics and bioglasses are ceramic materials that are biocompatible. Bioceramics are an important subset of biomaterials. Bioceramics range in biocompatibility from the ceramic oxides, which are inert in the body, to the other extreme of resorbable materials, which are eventually replaced by the body after they have assisted repair. Bioceramics are used in many types of medical procedures. Bioceramics are typically used as rigid materials in surgical implants, though some biocera
MXenes
In materials science, MXenes (pronounced "max-enes") are a class of two-dimensional inorganic compounds along with MBorenes, that consist of atomically thin layers of transition metal carbides, nitrides, or carbonitrides. MXenes accept a variety of hydrophilic terminations. The first MXene was reported in 2011 at Drexel University's College of Engineering, and was named by combining the prefix "MAX" or "MX" (for MAX phases), with "ene" by analogy to graphene.
photoelectrochemical process
electrochemical processes involving photons and the emission or absorption of light
fluorescence correlation spectroscopy
type of statistical analysis
octanol-water partition coefficient
measure of lipophilicity and hydrophilicity
osmotic coefficient
quantity characterizing the deviation of a solvent from ideal behavior
random coil
polymer conformation in which all bonded subunits are oriented randomly
Degree of ionization
ionic potential
ratio of electric charge to radius of an ion
Krafft temperature
minimum temperature at which surfactants form micelles
isotopomer
350 px|thumb|Isotopomers of isotopically modified ethanol. The molecule at the bottom left is not an isotopomer of any other depicted molecule.
Isotopomers or isotopic isomers are isomers which differ by isotopic substitution, and which have the same number of atoms of each isotope but in a different arrangement. For example, CH3OD and CH2DOH are two isotopomers of monodeuterated methanol.
Peter Debye Award in Physical Chemistry
American annual award in physical chemistry
photoexcitation
thumb|403x403px|An illustration of electron excitation, showing excitation by photon (left) and by particle collision (right). This is the simplest case of photoexcitation, sinca a single photon excites a single quantum particle.
Photoexcitation is a phenomenon in physics where an excited state of a quantum system (an atom or a molecule) is created by photon absorption. The excited state originates from the interaction between a photon and the quantum system when the energy of the photon is too low to cause photoionization. A very simple example of this process is electron excitation.
amagat
An amagat (denoted amg or Am) is a practical unit of volumetric number density. Although it can be applied to any substance at any conditions, it is defined as the number of ideal gas molecules per unit volume at 1 atm (101.325 kPa) and 0 °C (273.15 K).
atomicity
the total number of atoms present in one molecule of an element, compound or a substance is usually reffered to as atomicity.
Eötvös rule
polymer-bonded explosive
type of explosive chemical
Electrochemical equivalent
mass deposited per unit charge
Bjerrum length
Distance at which electrostatic interaction between two electrical charges is comparable to their thermal energy
molar refractivity
Apparent molar property
actinism
Actinism is the property of solar radiation that leads to the production of photochemical and photobiological effects. It is important in chemical photography and x-ray imaging, and causes sunburn and photodegradation of materials. Actinic chemicals include silver salts used in photography and other light-sensitive chemicals.
matrix isolation
experimental chemistry technique which uses inert gases to isolate and stabilize normally unstable intermediates, free radicals, and ions
electrodeionization
Electrodeionization (EDI) is a water treatment technology that utilizes DC power, ion exchange membranes, and ion exchange resin to deionize water, thereby removing trace minerals that function as anions and cations. By itself, it does not remove other contaminants, including pathogens, organic compounds, or dissolved gases. EDI is typically employed as a polishing treatment following reverse osmosis (RO), and is used in the production of ultrapure water. It differs from other RO polishing methods, like chemically regenerated mixed beds, by operating continuously without chemical regeneration.
hydration energy
the amount of energy released when one mole of ions undergo hydration
Irving Langmuir Award in Chemical Physics
award for interdisciplinary research in chemistry and physics
solvent effects
dependence of chemical properties on which solvent is used
Hamaker constant
definition for a Van der Waals body-body interaction