774 ppmv or 1774 x 10 6 molmol atmospheric n2o

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Unformatted text preview: (Patmosphere = 101 325 Pa OR 101.3 KPa), the par2al pressure of nitrogen can be calculated as: •  0.7808 x 101 325 Pa = 7.911 x 10 4 Pa •  Typical units: –  ppmv (parts per million volume), –  ppbv (parts per billion volume) –  pptv (parts per trillion volume) •  The mixing ra2o of methane in the dry atmosphere is approx, 1.7 ppmv. This means there are 1.7 umol of...
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