Asked by Lynn
In my lab of linear expansion, I need to find out the coefficient of linear expansion. The data I got for an aluminum rod are initial length is 59.7cm, the change in length is 95mm, the change in temperature is 75.4 Celsius degrees. I converted 59.7cm to 0.597m, and 95mm to 0.095m. But I got no where near the standard coefficient of linear expansion for aluminum, which is 22.5*10^-6, how come????????
PLEASE HELP!!!!!!!THANKS A LOT!!!!!!!!!
PLEASE HELP!!!!!!!THANKS A LOT!!!!!!!!!
Answers
Answered by
drwls
Your length increase measurement was wrong by a wide margin. There is no way an aluminum bar's length will increase 16% due to a 75 degree C temperature change.
Are you sure the length change was not 95 micrometers? How did you measure it?
Are you sure the length change was not 95 micrometers? How did you measure it?