Chemical Engineering Glossary
Chemical Engineering Glossary
Hi everyone! My name is Lea, and I am eighteen years old. It is my third semester at Cegep Montmorency, and I am studying natural science. This glossary will be for people who want to learn more about the profession of chemical engineering. It is an engineer that specializes in chemistry. They usually work with reactions that happen at a large scale. This glossary can be for people that are undecided on what they want to be in their life. It contains twenty terms of this topic. Each word has a definition, a part of speech, a translation, a pronunciation, an example of the word in a sentence, and an image from Wikimedia to have a visual. Also, there is a card game and a quiz, if you want to practice. I used Google to find the definitions, and I searched in a dictionary of chemical engineering to find the words in the glossary. I invite you to have a look at my glossary and feel free to ask me questions if you have some. Happy reading!
- atom
- noun
- An atom is the basic building block of all matter in the universe.
- Example: These hydrogen bonds are able to form due to a variation in the electronegativity of atoms, which is an ATOM's ability to attract electrons.
- en: atome
- catalyst
- noun
- A catalyst is a substance that speeds up a chemical reaction or a person or event that quickly causes a major change, without being changed or used up in the process.
- Example: The BMA polymer had a green colour, due to the presence of the copper CATALYST.
- en: catalyseur

- chemical
- noun
- A chemical is any substance that has a defined, fixed composition and is made of matter.
- Example: To model the dispersal of a plume of toxic gas generated by a CHEMICAL explosion and its impact on the surrounding area, for example, an understanding of atmospheric dispersion models, epidemiology and population distribution would be required.
- en: chimique

- collision
- noun
- In chemistry, a collision is an event where two or more particles (such as atoms, molecules, or ions) approach each other closely and interact, forming the basis for how chemical reactions happen.
- Example: It could be shown that the energy of these was decreasing upon COLLISION, and also changed with scattering angle.
- en: collision
- concentration
- noun
- The strength of a solution or the amount of a specific ingredient dissolved in a certain amount of liquid or gas.
- Example: Other factors involved include pH, Mg+, products of the Benson-Calvin cycle Significance in relation to environment The C 4 mechanism is thought to have evolved between 7 and 30 million years ago in response to a decrease in atmospheric CO 2 CONCENTRATION.
- en: concentration

- decomposition
- noun
- Decomposition is the natural or chemical process of breaking down a complex substance or living organism into simpler parts, basic elements, or organic/inorganic matter.
- Example: A detailed analysis of the reacting system has shown that protonation of the chromate is believed to facilitate the 2-electron transfer mechanism for the chromium to the peroxide, and also that more than one mechanism operates causing the DECOMPOSITION.
- en: décomposition

- density
- noun
- Density is a measure of how tightly packed matter is within a specific space, calculated as an object's mass divided by its volume.
- Example: They are non-specific attractions and are caused by the fact that the electron DENSITY around any given molecule at one particular instant may be unsymmetrical causing a temporary dipole.
- en: masse volumique

- electron
- noun
- An electron is a tiny subatomic particle that carries a negative electric charge.
- Example: Typical ELECTRON transport chain ELECTRON transport chains and their relation to reduction potential.
- en: électron
- inorganic chemistry
- noun
- Inorganic chemistry is the branch of science that studies the properties, structures, and behaviors of inorganic compounds, which are generally chemical substances that do not contain carbon-hydrogen bonds.
- Example: Real-life examples of inorganic chemistry include everyday substances like water, table salt, and metal-based products that generally lack carbon-hydrogen bonds.
- en: chimie inorganique

- laboratory
- noun
- A laboratory is a room, building, or facility equipped for scientific research, experiments, testing, and measurement.
- Example: However, during this 'infinite time' titration, even after periods as long as 20mins, the blue colour would reappear; due to time limits in the LABORATORY, there had to be a cut-off point.
- en: laboratoire

- molar mass
- noun phrase
- Molar mass is the mass of one mole of a given substance, expressed in grams per mole (g/mol).
- Example: It has a relatively high MOLAR MASS, thus to reduce weighing error, which has also been reduced by using an accurate four-decimal-place electronic scale in weighing.
- en: masse molaire
- molecule
- noun
- A molecule is a group of two or more atoms bound together by chemical bonds. It is the smallest basic unit of a pure substance that can exist on its own while keeping the original chemical properties of that substance.
- Example: In C 4 plants (Fig 4.2) , the gas is fixated to phosphoenolpyruvate (PEP) using PEP carboxylase to form a 4-carbon MOLECULE- oxaloacetate.
- en: molécule
- organic chemistry
- noun
- Organic chemistry is the scientific study of the structure, properties, composition, reactions, and preparation of carbon-containing compounds.
- Example: The gradient gives 2 A zA zB . 3.3 Solvent Effects The interaction between solvent and solute is key and critical to determining kinetics of a reaction in ORGANIC CHEMISTRY especially- such as the stabilisation of carbocation intermediates by an electron rich donor solvent, or the competition of two nucleophiles.
- en: chimie organique
- periodic table
- noun phrase
- The periodic table is an organized chart of all known chemical elements in the universe.
- Example: Bohr's model was confirmed by successful prediction of missing elements in the PERIODIC TABLE that had similar properties to other elements.
- en: tableau périodique
- pH
- noun
- PH is a scale that measures how acidic or basic a liquid is based on the concentration of hydrogen ions.
- Example: Both of these substances are acidic and would lower the PH to 5.5 as is shown in 2(a) if the buffer mechanism was not in place to maintain a steady PH.
- en: pH

- reaction
- noun
- A process where substances change, combine, or break apart to form new substances, or an equal and opposite force in physics.
- Example: This REACTION is catalysed by phosphofructokinase (PFK), an enzyme that plays a central role in the integration of much of metabolism.
- en: réaction

- stoichiometry
- noun
- Stoichiometry is the branch of chemistry that calculates the numerical relationships between reactants and products in a chemical reaction. You can think of a balanced chemical equation like a recipe that tells you the exact proportions of ingredients needed to make a specific amount of product.
- Example: This is in agreement with the proposed STOICHIOMETRY.
- en: stœchiométrie
- system
- noun
- In chemistry, a system is the specific part of the universe chosen for study and observation, separated from the rest of the universe by a real or imaginary boundary.
- Example: Chemists are usually focused on the system and its associated changes.
- en: système

- thermodynamics
- noun
- Thermodynamics is the branch of physics and engineering that studies the relations between heat, work, temperature, and energy.
- Example: The true THERMODYNAMICS solubility, ksth, is the quantity which is truly constant at any one defined temperature: For dilute solutions, there are few interactions between ions and so the effects can be ignored as (a + -) tends to one, ksth tends to ks.
- en: thermodynamique

- titration
- noun
- Titration is a laboratory method used to find the unknown concentration of a chemical solution or, in medicine, to adjust the dose of a drug over time.Chemistry Definitio.
- Example: To study the results of TITRATION's with a sparingly soluble salt, and to investigate the effect of differing electrolytes.
- en: titrage

Thank you for your helpful list, Lea!
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