What is Steam?
{{expand|date=December 2024}}{{seealso|Steam (service)}} [[File:Steam devil.jpg|thumb|250px|Steam condensing in the air]] [[File:Grazebrook Beam Engine.jpg|thumb|250px|An 1817 [[Boulton & Watt]] beam engine, used in [[Netherton]] at the ironworks of M.W. Grazebrook. Re-erected on the A38(M) in Birmingham, England]] '''Steam''' is the name given to [[water]] when it is in a [[gas]] form. Steam is sometimes thought of as a cloud of translucent mist, however that is only the result of the steam [[Condensation|condensing]] in the air, forming [[water vapor]]. Actual hot steam is invisible.{{cn|date=December 2024}} ==Introduction== When the [[pressure]] of the [[atmosphere]] is 1013 m[[Bar (unit)|bar]] – average pressure for a place which is at [[sea level]] – water will [[Boiling|boil]] to become steam at 100 [[Celsius|°C]]. This is the [[boiling point]]. Boiling happens in a [[boiler]]. 100 [[Celsius|°C]] is the same [[temperature]] as 212 [[Fahrenheit|°F]], 80 [[Réaumur|°R]] and 373.15 [[Kelvin]].{{cn|date=December 2024}} Steam is mainly used for [[Power (physics)|powering]] up [[Steam engine|steam engines]]. A steam engine is a heat engine performing [[Work (physics)|mechanical work]] using steam as its working [[fluid]].{{cn|date=December 2024}} ==Heating food== Steam gets sometimes used for heating food. In a [[pressure cooker]], some water turns into steam, and some steam gets [[release]]d (or let out) thru a [[valve]]. There are other ways to steam food. == Other websites== * [http://en.citizendium.org/wiki/Steam Steam] -Citizendium {{-}} {{science-stub}} [[Category:Basic English 850 words]] [[Category:Gases]]