Charles' Law says that temperature and volume vary directly. This is true at constant pressure only. The temperature for all problems using this law must be in Kelvin. The conversion for this is: C + 273.15 = K. As temperature increases, the gas gains energy. This makes it contact with the side of the container more and want to expand. The formula we use for these problems is:
Example: Gas at 15C and 1 atm has a volume of 2.58L. What volume will it have at 38C and 1 atm?
T1=15+273.15=288.15K V1=2.58L T2=38+273.15=311.15K V2=?
(2.58)(311.15)/(288.15) = 2.79L
Great example to help explain the information above
ReplyDeleteGreat example and brief run down of Charles' law. Also, great link.
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