Karteikarten am Surface area effects, erstellt von Alvaro Vargas Calero am 01/05/2018.
|
Erstellt von Alvaro Vargas Calero
vor etwa 6 Jahre
|
|
Schließen
|
|
Erstellt von Alvaro Vargas Calero
vor etwa 6 Jahre
|
|
Surface area effetcs
Automobile engines use surface area effects to increase reaction rates. Gasoline is injected into each cylinder, where it combusts on ignition by a spark from the spark plug. The gasoline is injected in the form of microscopic droplets because in that form it has a much larger surface area and can burn much more rapidly than if it were fed into the cylinder as a stream. Similarly, a pile of finely divided flour burns slowly (or not at all), but spraying finely divided flour into a flame produces a vigorous reaction.
