P = pressure, atm
V = volume, L
n = moles, mol
R = gas constant = 0.08206 (L·atm)/(mol·K)
T = temperature, K
Assume that a single cylinder of an automobile engine has a volume of 525 cm3 .
If the cylinder is full of air at 75 oC and 0.990 atm , how many moles of O2 are present? (The mole fraction of O2 in dry air is 0.2095.)
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