Factory pattern should be used when: - a framework delegate the creation of objects derived from a common superclass to the factory - we need flexibility in adding new types of objects that must be created by the class. Along with singleton pattern the factory is one of the most used patterns.
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).
Energy released = Exothermic exo means 'put out' Additional information: Overall Endothermic In this reaction more energy is required to break the bond than the energy released form breaking new bonds. Overall Exothermic In this reaction less energy is required to break the bond and more energy is released when forming new bonds.