Air is pumped into a bicycle tire. The 28 moles of air initially in the tire have a gauge pressure of 4 atm. How many moles of air must be pumped into the tire in order to raise the gauge pressure to 9 atm? Assume that the volume and temperature of the air inside the tire are approximately constant.

Physics for Scientists and Engineers: Foundations and Connections
1st Edition
ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter19: Temperature, Thermal Expansion And Gas Laws
Section: Chapter Questions
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Air is pumped into a bicycle tire. The 28 moles of air initially in the tire have a gauge pressure of 4 atm. How many moles of air must be pumped into the tire in order to raise the gauge pressure to 9 atm? Assume that the volume and temperature of the air inside the tire are approximately constant.

Not 63 or 35 moles!!!

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