|Dec4-08, 05:39 PM||#1|
Energy required to expand V of cylinder
1. The problem statement, all variables and given/known data
Calculate the work done when the volume of a cylinder is increased by 90.0 L against the atmospheric pressure. Think about the upward movement of a piston as it expands the volume of a cylinder.
I am actually an AP Chemistry student and am supposed to do this problem using unit analysis as I am not taking AP Physics. However, I have taken Grade 11 Physics.
Thank you for your help!
Since 1 L = 0.001 m3, then 90.0 L = 0.0900 m3.
Since 1 Pa = 1 N/m2, then 1.013E5 Pa = 1.013E5 N/m2.
In order to get Nm = J = work:
1.013E5 N/m2 x 0.0900 m3 = 9,117 Nm = 9117 J = 9.12 x 103 J.
|Dec5-08, 08:57 AM||#2|
That looks correct.
|Dec6-08, 06:38 PM||#3|
Thank you for your response!
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