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Gas collection by water displacement; measured gas volume must be corrected for water vapor pressure at temperature.
चरण-दर-चरण मार्गदर्शिका
- 1Input measured volume, temperature, atmospheric pressure
- 2Correct for water vapor pressure
- 3Calculate dry gas volume at STP or other condition
हल किए गए उदाहरण
इनपुट
O₂ collected at 25°C, 760 mmHg, wet
परिणाम
Correct for 23.8 mmHg H₂O vapor pressure; V_dry = 0.969 × V_wet
सामान्य गलतियां जिनसे बचना है
- ✕Forgetting water vapor pressure correction
- ✕Not converting to STP correctly
अक्सर पूछे जाने वाले प्रश्न
Why correct for water vapor?
Measured gas is mixture of gas + H₂O vapor; must subtract partial pressure for true gas amount.
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