In an exothermic reaction, the activation energy (energy needed to start the reaction) is less than the energy that is subsequently released, so there is a net release of energy.

A chemical reaction is exothermic if heat is released by the system into the surroundings. Because the surroundings is gaining heat from the system, the temperature of the surroundings increases.

Mar 9, 2016 · An exothermic reaction is defined as a reaction that releases heat and has a net negative standard enthalpy change. Examples include any combustion process, rusting of iron, and freezing …

May 8, 2025 · Exothermic reaction: Releases heat (feels hot). These energy exchanges are part of a broader field known as thermochemistry, which studies the heat involved in chemical and physical …

Jul 30, 2024 · Endothermic and exothermic reactions are chemical reactions that absorb and release heat, respectively. Photosynthesis is a good example of an endothermic reaction.

When a chemical reaction happens, energy is transferred to or from the surroundings. When energy is transferred to the surroundings, this is called an exothermic reaction and usually feels hot.

The breaking of bonds is an endothermic process requiring energy, while the making of bonds is an exothermic process with energy being released. The reaction on the surface is exothermic, so the …

3 days ago · An exothermic reaction is a chemical reaction that releases energy in the form of heat, light, or sound. Because energy is released, the surroundings become warmer during the reaction.

A chemical reaction is said to be exothermic when it releases energy in the form of heat. The system (reaction) releases heat to the surroundings as the reactants transform into products.

The meaning of EXOTHERMIC is characterized by or formed with evolution of heat. How to use exothermic in a sentence.