Combustion

Combustion /kəmˈbʌs.tʃən/ or burning is a high-temperature exothermic redox chemical reaction between a fuel and an oxidant, usually atmospheric oxygen, that produces oxidized, often gaseous products, in a mixture termed as smoke. Combustion in a fire produces a flame, and the heat produced can make combustion self-sustaining. Combustion is often a complicated sequence of elementary radical reactions. Solid fuels, such as wood, first undergo endothermic pyrolysis to produce gaseous fuels whose combustion then supplies the heat required to produce more of them. Combustion is often hot enough that light in the form of either glowing or a flame is produced. A simple example can be seen in the combustion of hydrogen and oxygen into water vapor, a reaction commonly used to fuel rocket engines. This reaction releases 242 kJ/mol of heat and reduces the enthalpy accordingly (at constant temperature and pressure):

Combustion of an organic fuel in air is always exothermic because the double bond in O₂ is much weaker than other double bonds or pairs of single bonds, and therefore the formation of the stronger bonds in the combustion products CO₂ and H₂O results in the release of energy. The bond energies in the fuel play only a minor role, since they are similar to those in the combustion products; e.g., the sum of the bond energies of CH₄ is nearly the same as that of CO₂. The heat of combustion is approximately -418 kJ per mole of O₂ used up in the combustion reaction, and can be estimated from the elemental composition of the fuel.

Combustion (software)

Combustion was a computer program for motion graphics, compositing and visual effects. It is commonly likened to Adobe's After Effects, and shares a timeline based interface with Autodesk Media and Entertainment's (formerly Discreet) higher-end compositing systems Inferno, Flame and Flint. This is in contrast to the node based interface used by some other compositing applications.

The last version of Combustion was Combustion 2008. The end of its development was never officially announced, but the company was known to be concurrently developing a new compositing platform, Autodesk Toxik

References

Combustion (disambiguation)

Combustion may refer to:

Cato

Cato may refer to:

Literature

Organizations

People

Cato, a Tragedy

Cato, a Tragedy is a play written by Joseph Addison in 1712, and first performed on 14 April 1713. Based on the events of the last days of Marcus Porcius Cato Uticensis (95–46 B.C.), a Stoic whose deeds, rhetoric and resistance to the tyranny of Julius Caesar made him an icon of republicanism, virtue, and liberty. Addison's play deals with, among other things, such themes as individual liberty versus government tyranny, Republicanism versus Monarchism, logic versus emotion, and Cato's personal struggle to hold to his beliefs in the face of death. It has a prologue written by Alexander Pope, and an epilogue by Samuel Garth.

The play was a success throughout England and her possessions in the New World, as well as Ireland. It continued to grow in popularity, especially in the American colonies, for several generations. Indeed, it was almost certainly a literary inspiration for the American Revolution, being well known to many of the Founding Fathers. In fact, George Washington had it performed for the Continental Army while they were encamped at Valley Forge.

List of The Hunger Games characters

The following is a list of characters in The Hunger Games trilogy, a series of young adult science fiction novels by Suzanne Collins that were later adapted into a series of four feature films.

Main characters