Science Buddies: "Ask an Expert"

I need to try to "normalize" the results for my experiment. Does anyone know where I can get the percentage contraction or expansion of gasoline due to temperature changes? For instance "for every 1 degree change in temperature, there is 'X' percentage change in the volume occupied by the gasoline". Thanks

Dear suziest

I came across a variety of websites that discuss this topic. One of the sites contained some interesting facts you might find useful

see:
http://www.users.qwest.net/~taaaz/AZgas.html

Here's a small excerpt from that site:
Gasoline volume changes approximately 0.125% for every 1ºC change in temperature (0.058%/ºF) . The energy content of a gallon of gasoline purchased by a motorist in Nome, Alaska in January could, theoretically, be as much as 8-10% greater that that of a gallon of gasoline purchased by a motorist in Phoenix, Arizona in July. Although temperature extremes in Canada would be far less than this example, attention to the effect of temperature on energy content of a given volume of gasoline has resulted in voluntary volume correction of most gasoline sold in Canada to 15º C.

Here's some other sites you might want to check out also

http://www.fuelingtechnologies.com/Mass ... 04.30r.pdf

http://www.kansascity.com/mld/kansascit ... 377737.htm

http://www.cbc.ca/consumers/market/file ... index.html

Good luck with your experiment

Janelle