Mountain Bike Tire Pressure Psi
Chemistry Question: Pressurized carbon dioxide inflators can be used to inflate a bicycle tire…?
Pressurized carbon dioxide inflators can be used to inflate a bicycle tire in the event of a flat. These inflators use metal cartridges that contain 16.0 g of carbon dioxide.
At 294 K, to what pressure (in psi) can the carbon dioxide in the cartridge inflate a 3.08 L mountain bike tire? (Note: The gauge pressure is the difference between the total pressure and atmospheric pressure. In this case, assume that atmospheric pressure is 14.7 psi.)
moles CO2 = 16.0 g / 44.009 g/mol=0.364
p = nRT/V = 0.364 x 0.08206 x 294 / 3.08 = 2.85 atm
1 atm = 14.7 psi
pressure = 14.7 x 2.85 =41.9 psi
p = 41.9 – 14.7 = 27.2 psi
how to avoid a pinch flat
