Catalysed hydrogen peroxide decomposition

Référence de la vidéo 12081390
Catalysed hydrogen peroxide decomposition. Animation of molecules of the inorganic chemical hydrogen peroxide (red and white) and its decomposition reaction being catalysed by iodide ions (I-, purple). Atoms are represented as coloured spheres joined by molecular bonds. Hydrogen peroxide (H2O2) consists of two atoms of oxygen (red) and two atoms of hydrogen (white). The animation shows two molecules of hydrogen peroxide colliding with an iodide ion, and bonds breaking and forming. The products are two water molecules (H2O) and an iodide-oxygen complex. The latter breaks apart as an oxygen molecule forms (O2), leaving the iodide ion unchanged. The iodide is not used up, and acts as a catalyst and increases the reaction rate which is slow at room temperature. The second half of the clip is a graph showing the effects of a catalyst on the energy state of the reaction as it moves between the reactants (left) and the products (right). The activation energy (Ea) is lower with the catalyst than without, increasing the reaction rate.
Licence : Droits gérés
Crédit : Science Photo Library / RHYS LEWIS, AHS, DECD, UNISA
Model Release : Non requis
Durée : 60 Secondes
Aspect ratio : 16/9
Restrictions : -

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