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).
You won't believe these 10 facts about people. Chemical potential energy is energy that is stored in atoms and the bonds between atoms and can be released by various chemical reactions. An example that most people are familiar with is the energy released when fossil fuels such as gasoline are burned.nergy is released when these bonds form between atoms, and the energy in chemical reactions is not created or destroyed. This means that chemical reactions may be analyzed like mathematical equations.