What happens to energy in an endothermic reaction?
Energy (in the form of heat) is absorbed from the environment during endothermic reactions. Instant cold packs, for example, become cold when the ammonium nitrate and water are mixed. As the chemical reaction takes place, it absorbs heat, which is why the pack feels cold.
Endothermic; that reaction in which energy is absorbed is called endothermic reaction, mostly the breaking of a molecule is an endothermic reaction, as for breaking process energy is required, when a molecule gets the sufficient energy it breaks. EXOTHERMIC Reaction is that in which energy is released, as combining of any two element or atoms to make a molecule, take the example of formation of CO2.
Exothermic (hyperthermic) reaction: a chemical reaction that releases energy,* Endothermic (hypothermic) reaction: a chemical reaction that absorbs energy.* * Energy = heat, light, etc. The direction of Heat transfer: Exothermic reactions transfer heat energy to the environment. Endothermic reactions transfer heat energy from the environment .
In an endothermic reaction the energy of the products is higher than the energy of the reactants. The activation energy also is an energy increase. The activation energy must be at least as high as the products energy or the reaction would never take place. Thus, the activation energy must be at least as large as the enthalpy in an endothermic reaction.
An endothermic reaction is one in which thermal energy, or heat, is absorbed. If heat is absorbed in the reaction process, it is endothermic. By monitoring the temperature of the reactants in a reaction, an observer could identify an endothermic reaction through observation of a decrease in the temperature.