See soorce fer Charles's law

[[File:Charles and Gay-Lussac's Law animated.gif|thumb|300px|An animation demonstratin the relationship atween volume an temperatur.]]
'''Charles' law''' (an aa kent as the '''law o volumes''') is an experimental [[gas laws|gas law]] that describes hou [[gas]]es tend tae expand when heatit. A modren statement o Charles' law is:
<blockquote>
When the pressur on a sample o a dry gas is held constant, the Kelvin temperatur an the volume will be directly relatit.<ref>{{Citation
| publisher = Heinemann
| isbn = 0-435-57078-1
| pages = 141–42
| last = Fullick
| first = P.
| title = Physics
| location = 
| year = 1994
}}.</ref>
</blockquote>
this [[Proportionality (mathematics)#Direct proportionality|directly proportional]] relationship can be written as:
:<math>V \propto T\,</math>
or
:<math>\frac{V}{T}=k</math>

whaur:

:''V'' is the [[volume]] o the gas
:''T'' is the [[temperatur]] o the gas (meisurt in [[Kelvin]]).
:''k'' is a [[Constant (mathematics)|constant]].

==References==
{{Reflist}}

[[Category:Gas laws]]