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  2. Activated complex - Wikipedia

    en.wikipedia.org/wiki/Activated_complex

    Transition state theory explains the dynamics of reactions. The theory is based on the idea that there is an equilibrium between the activated complex and reactant molecules. The theory incorporates concepts from collision theory, which states that for a reaction to occur, reacting molecules must collide with a minimum energy and correct ...

  3. Eyring equation - Wikipedia

    en.wikipedia.org/wiki/Eyring_equation

    The equation follows from the transition state theory, also known as activated-complex theory. If one assumes a constant enthalpy of activation and constant entropy of activation, the Eyring equation is similar to the empirical Arrhenius equation , despite the Arrhenius equation being empirical and the Eyring equation based on statistical ...

  4. Complexity theory and organizations - Wikipedia

    en.wikipedia.org/wiki/Complexity_theory_and...

    Complexity theory also relates to knowledge management (KM) and organizational learning (OL). "Complex systems are, by any other definition, learning organizations." [18] Complexity Theory, KM, and OL are all complementary and co-dependent. [18] “KM and OL each lack a theory of how cognition happens in human social systems – complexity ...

  5. Transition state theory - Wikipedia

    en.wikipedia.org/wiki/Transition_state_theory

    This theory was developed simultaneously in 1935 by Henry Eyring, then at Princeton University, and by Meredith Gwynne Evans and Michael Polanyi of the University of Manchester. [3] [4] [5] TST is also referred to as "activated-complex theory", "absolute-rate theory", and "theory of absolute reaction rates". [6]

  6. Diffusion-controlled reaction - Wikipedia

    en.wikipedia.org/wiki/Diffusion-controlled_reaction

    The process of chemical reaction can be considered as involving the diffusion of reactants until they encounter each other in the right stoichiometry and form an activated complex which can form the product species. The observed rate of chemical reactions is, generally speaking, the rate of the slowest or "rate determining" step.

  7. Change management - Wikipedia

    en.wikipedia.org/wiki/Change_management

    The Change Management Foundation is shaped like a pyramid with project management managing technical aspects and people implementing change at the base and leadership setting the direction at the top. The Change Management Model consists of four stages: Determine Need for Change; Prepare & Plan for Change; Implement the Change; Sustain the Change

  8. Entropy of activation - Wikipedia

    en.wikipedia.org/wiki/Entropy_of_activation

    In chemical kinetics, the entropy of activation of a reaction is one of the two parameters (along with the enthalpy of activation) that are typically obtained from the temperature dependence of a reaction rate constant, when these data are analyzed using the Eyring equation of the transition state theory. The standard entropy of activation is ...

  9. Complexity theory - Wikipedia

    en.wikipedia.org/wiki/Complexity_theory

    Computational complexity theory, a field in theoretical computer science and mathematics; Complex systems theory, the study of the complexity in context of complex systems; Assembly theory, a way of characterizing extraterrestrial molecular complexity to assess the probability of the presence of life