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  2. Le Chatelier's principle - Wikipedia

    en.wikipedia.org/wiki/Le_Chatelier's_principle

    Le Chatelier–Braun principle analyzes the qualitative behaviour of a thermodynamic system when a particular one of its externally controlled state variables, say , changes by an amount , the 'driving change', causing a change , the 'response of prime interest', in its conjugate state variable , all other externally controlled state variables remaining constant.

  3. Antonio Escohotado - Wikipedia

    en.wikipedia.org/wiki/Antonio_Escohotado

    Drugs what they do is induce chemical modifications that can also induce loneliness, silence, withdrawal, pain, fear. Chemically one cannot distinguish a person under the effects of a drug, than under the effects of yoga for example. Chemically we are nothing more than a set of reactions.

  4. Thermodynamic activity - Wikipedia

    en.wikipedia.org/wiki/Thermodynamic_activity

    The relative activity of a species i, denoted a i, is defined [4] [5] as: = where μ i is the (molar) chemical potential of the species i under the conditions of interest, μ o i is the (molar) chemical potential of that species under some defined set of standard conditions, R is the gas constant, T is the thermodynamic temperature and e is the exponential constant.

  5. Physical chemistry - Wikipedia

    en.wikipedia.org/wiki/Physical_chemistry

    Physical chemistry is the study of macroscopic and microscopic phenomena in chemical systems in terms of the principles, practices, and concepts of physics such as motion, energy, force, time, thermodynamics, quantum chemistry, statistical mechanics, analytical dynamics and chemical equilibria.

  6. Chemical reaction - Wikipedia

    en.wikipedia.org/wiki/Chemical_reaction

    A chemical reaction is a process that leads to the chemical transformation of one set of chemical substances to another. [1] When chemical reactions occur, the atoms are rearranged and the reaction is accompanied by an energy change as new products are generated.

  7. Chemical kinetics - Wikipedia

    en.wikipedia.org/wiki/Chemical_kinetics

    Chemical kinetics, also known as reaction kinetics, is the branch of physical chemistry that is concerned with understanding the rates of chemical reactions. It is different from chemical thermodynamics , which deals with the direction in which a reaction occurs but in itself tells nothing about its rate.

  8. Cage effect - Wikipedia

    en.wikipedia.org/wiki/Cage_effect

    In chemistry, the cage effect [1] (also known as geminate recombination [2]) describes how the properties of a molecule are affected by its surroundings. First introduced by James Franck and Eugene Rabinowitch [ 3 ] [ 4 ] in 1934, the cage effect suggests that instead of acting as an individual particle, molecules in solvent are more accurately ...

  9. Immediacy (philosophy) - Wikipedia

    en.wikipedia.org/wiki/Immediacy_(philosophy)

    Immediacy also possesses characteristics of both of the homophonic heterographs 'immanent' and 'imminent', and what entails to both within ontology. Immediacy also relates to the philosophy of phenomenology , as they are schools of thought which both concern subjective perceptions of objects and time.