fuel cell breathalyzer
September 14th, 2008
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What percentage of the volume is that drivers breath ethanol?
When a 190 ml suspected drunk driver blows his breath through the test fuel cell bladder, the Breathalyzer produces an average of 330 mA current for 10 s. Assuming a pressure of 1.0atm and a temperature of 25 C, what percentage (volume) of the breath of the driver ethanol?
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