Terms starting with G
28 terms · page 1 of 2
Galvanic Cell
An electrochemical cell in which a spontaneous redox reaction generates electrical energy.
Electrochemistry & RedoxGalvanic Corrosion
Accelerated corrosion of the more reactive of two different metals in electrical contact within an electrolyte.
Electrochemistry & RedoxGalvanisation
The coating of iron or steel with a layer of zinc to protect it from corrosion.
Nuclear & RadiochemistryGamma Emission
The release of high-energy electromagnetic radiation from a nucleus dropping to a lower energy state.
Inorganic & Coordination ChemistryGangue
The commercially worthless rock and mineral matter surrounding a valuable ore mineral.
Analytical Chemistry & SpectroscopyGas Chromatography
A technique for separating volatile compounds carried by an inert gas through a heated column.
Analytical Chemistry & SpectroscopyGas Chromatography–Mass Spectrometry
A hybrid technique in which compounds separated by gas chromatography are identified by a mass spectrometer.
States of Matter & Gas LawsGas Density
The mass of a gas per unit volume, which for a gas depends strongly on temperature, pressure and molar mass.
States of Matter & Gas LawsGaseous State
The state of matter in which particles are widely separated and move randomly at high speed, filling any container completely.
Stoichiometry & Chemical ReactionsGay-Lussac's Law of Combining Volumes
The principle that gases react in volume ratios that are simple whole numbers, when measured at the same temperature and pressure.
States of Matter & Gas LawsGay-Lussac's Pressure Law
At constant volume, the pressure of a fixed mass of gas is directly proportional to its absolute temperature.
Nuclear & RadiochemistryGeiger–Müller Counter
An instrument that detects ionising radiation through the avalanche of ionisation it triggers in a low-pressure gas.
Solutions & Colligative PropertiesGel
A colloidal system in which a liquid is trapped within a continuous three-dimensional solid network.
Biochemistry & Polymer ChemistryGenetic Code
The set of rules by which sequences of three bases in nucleic acid specify particular amino acids.
Organic ChemistryGeometric Isomerism
Stereoisomerism arising from restricted rotation about a double bond or within a ring.
Inorganic & Coordination ChemistryGeometrical Isomerism in Complexes
Stereoisomerism arising from different spatial arrangements of ligands around the metal centre.
Thermochemistry & ThermodynamicsGibbs Free Energy
The thermodynamic potential whose change determines whether a process is spontaneous at constant temperature and pressure.
Thermochemistry & ThermodynamicsGibbs–Helmholtz Equation
The relation showing how the Gibbs free energy of a system varies with temperature.
Electrochemistry & RedoxGlass Electrode
An ion-selective electrode whose thin glass membrane develops a potential proportional to the pH of the solution.
Biochemistry & Polymer ChemistryGlucose
The most abundant monosaccharide and the primary energy source for most living cells.
Biochemistry & Polymer ChemistryGlycogen
The storage polysaccharide of animals, a highly branched polymer of glucose.
Biochemistry & Polymer ChemistryGlycolysis
The ten-step metabolic pathway that converts one molecule of glucose into two of pyruvate.
Biochemistry & Polymer ChemistryGlycosidic Bond
The covalent linkage joining a sugar unit to another molecule through an oxygen bridge.
States of Matter & Gas LawsGraham's Law of Diffusion
The rate at which a gas diffuses or effuses is inversely proportional to the square root of its molar mass.