Question

what is exothermic?????
​

Answer 1

Answer:

Exothermic Process

In thermodynamics, the term exothermic process (exo- : "outside") describes a process or reaction that releases energy from the system to its surroundings, usually in the form of heat, but also in a form of light (e.g. a spark, flame, or flash), electricity (e.g. a battery), or sound (e.g. explosion heard when burning hydrogen). Its etymology stems from the Greek prefix (exō, which means "outwards") and the Greek word (thermikόs, which means "thermal"). The term exothermic was first coined by Marcellin Berthelot.

The opposite of an exothermic process is an endothermic process, one that absorbs energy usually in the form of heat. The concept is frequently applied in the physical sciences to chemical reactions where chemical bond energy is converted to thermal energy (heat).

Exothermic Reaction:-

An exothermic reaction is a "reaction for which the overall standard enthalpy change ΔH⚬ is negative."Exothermic reactions usually release heat and entail the replacement of weak bonds with stronger ones. The term is often confused with exergonic reaction, which IUPAC defines as "... a reaction for which the overall standard Gibbs energy change ΔG⚬ is negative."A strongly exothermic reaction will usually also be exergonic because ΔH⚬ makes a major contribution to ΔG⚬. Most of the spectacular chemical reactions that are demonstrated in classrooms are exothermic and exergonic. The opposite is an endothermic reaction, which usually takes up heat and is driven by an entropy increase in the system.

I hope this answer helps you ☺.