enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Homogeneity and heterogeneity - Wikipedia

    en.wikipedia.org/wiki/Homogeneity_and_heterogeneity

    Homogeneous reactions are chemical reactions in which the reactants and products are in the same phase, while heterogeneous reactions have reactants in two or more phases. Reactions that take place on the surface of a catalyst of a different phase are also heterogeneous. A reaction between two gases or two miscible liquids is homogeneous.

  3. Homogeneous catalysis - Wikipedia

    en.wikipedia.org/wiki/Homogeneous_catalysis

    Homogeneous catalysis is an established technology that continues to evolve. An illustrative major application is the production of acetic acid . Enzymes are examples of homogeneous catalysts.

  4. Electrocatalyst - Wikipedia

    en.wikipedia.org/wiki/Electrocatalyst

    Homogeneous electrocatalysts, which are soluble, assist in transferring electrons between the electrode and reactants, and/or facilitate an intermediate chemical transformation described by an overall half reaction. [2]

  5. Photocatalysis - Wikipedia

    en.wikipedia.org/wiki/Photocatalysis

    In homogeneous photocatalysis, the reactants and the photocatalysts exist in the same phase. The process by which the atmosphere self-cleans and removes large organic compounds is a gas phase homogenous photocatalysis reaction. [ 26 ]

  6. Phase-transfer catalyst - Wikipedia

    en.wikipedia.org/wiki/Phase-transfer_catalyst

    In chemistry, a phase-transfer catalyst or PTC is a catalyst that facilitates the transition of a reactant from one phase into another phase where reaction occurs. Phase-transfer catalysis is a special form of catalysis and can act through homogeneous catalysis or heterogeneous catalysis methods depending on the catalyst used.

  7. Catalysis - Wikipedia

    en.wikipedia.org/wiki/Catalysis

    An illustrative example is the effect of catalysts to speed the decomposition of hydrogen peroxide into water and oxygen: . 2 H 2 O 2 → 2 H 2 O + O 2. This reaction proceeds because the reaction products are more stable than the starting compound, but this decomposition is so slow that hydrogen peroxide solutions are commercially available.

  8. Chemical equilibrium - Wikipedia

    en.wikipedia.org/wiki/Chemical_equilibrium

    which is the standard Gibbs energy change for the reaction that can be calculated ... Homogeneous equilibrium consists of reactants and products belonging in the same ...

  9. 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 ... Acids are an example of a homogeneous catalyst, ...