Editing Surface area (section)

== In chemistry ==
[[File:Surface area.svg|thumb|Surface area of particles of different sizes.]]
{{see also|Accessible surface area}}
Surface area is important in [[chemical kinetics]]. Increasing the surface area of a substance generally increases the [[reaction rate|rate]] of a [[chemical reaction]]. For example, [[iron]] in a fine powder will [[combustion|combust]],<ref>{{Cite journal |last1=Nasr |first1=Somaye |last2=Plucknett |first2=Kevin P. |date=2014-02-20 |title=Kinetics of Iron Ore Reduction by Methane for Chemical Looping Combustion |url=https://pubs.acs.org/doi/10.1021/ef402142q |journal=Energy & Fuels |language=en |volume=28 |issue=2 |pages=1387–1395 |doi=10.1021/ef402142q |issn=0887-0624|url-access=subscription }}</ref> while in solid blocks it is stable enough to use in structures. For different applications a minimal or maximal surface area may be desired.
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