Gambon has played the eponymous mystery writer protagonist in the BBC television serial The Singing Detective, Jules Maigret in the 1990s ITV serial Maigret, and Professor Albus Dumbledore in the Harry Potter films after the death of actor Richard Harris who played the part in the first two Harry Potter films.
Exothermic reaction. An exothermic reaction is a chemical reaction that releases energy by light or heat. It is the opposite of an endothermic reaction. Expressed in a chemical equation: reactants â products + energy. Exothermic Reaction means exo meaning releases and thermic means heat. So the reaction in which there is release of heat with or without light is called exothermic reaction.
Exothermic (and endothermic) describe two types of chemical reactions or systems found in nature, as follows. Simply stated, after an exothermic reaction, more energy has been released to the surroundings than was absorbed to initiate and maintain the reaction.n exothermic chemical reactions, the heat that is released by the reaction takes the form of electromagnetic energy. The transition of electrons from one quantum energy level to another causes light to be released.