Please enable JavaScript.

Coggle requires JavaScript to display documents.

Matter & the Environment (Exothermic & Endothermic Reactions…

- - - - The example mentioned is Iron Oxide and Aluminium which form Iron and Aluminium Oxide
      - In this example, the energy of the reactants was high, then, activation energy was applied and the products ended up with a low energy, because the energy was released on the reactions.
  - - - The example used in the video is a decomposition reaction from Ammonium Nitrate to form Ammonium and Nitrate Ions.
      - In this example, the energy of the reactants was lower than products, then the activation energy is applied and the products had a higher energy, due to the fact that they absorbed energy from the surroundings.
- - - - Temperature is measured by delta H, if it is negative, the reaction is exothermic, and it releases energy. However if the delta H is positive, the reaction is endothermic, meaning that energy must be absorbed. In order to let the equation be in equilibrium, heat must be added as a substance either on the reactant part or the product part, depending if it's endothermic or exothermic.
    - - As an example, if MORE amount of a substance is applied in the reactants, the forward reaction speeds up in order to use the extra reactants to apply them to the product and to let EQUILIBRIUM be present in the reaction.
    - - The smaller the volume, the faster the particles will move and exert pressure. If there's an imbalance of the number of moles in whichever side, it will shift towards the side with fewer particles.