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1 dzień temu · The atmospheric pressure at the top of the stratosphere is roughly 1/1000 the pressure at sea level. It contains the ozone layer , which is the part of Earth's atmosphere that contains relatively high concentrations of that gas.
5 dni temu · At sea level the mean pressure is about 1,000 mb (100 kPa), varying by less than 5 percent from this value at any given location or time.
5 dni temu · The pressure of the water vapour, which contributes to the pressure of the atmosphere, can be calculated from the absolute humidity dv by the gas equation: in which R is the gas constant, T the absolute temperature, Mw the molecular weight of water, and e the water vapour pressure in millibars (mb).
3 dni temu · By convention, a pressure of 1. 013 × 10 5 N/m 2 is referred to as one atmosphere, and is taken as the average pressure at sea level. The atmospheric pressure at the same altitude above sea level is remarkably constant across the Earth. Variations of 1 percent are associated with major weather systems.
4 dni temu · P1V1/T1=P2V2/T2, the relationship between the pressure, volume, and temperature of a fixed amount of gas. (Essential in calculating a certain variable of a gas under changing conditions, more realistic).
4 dni temu · A sample of air contains only nitrogen and oxygen gases whose partial pressures are 0.80 atm and 0.20 atm, respectively. Calculate the total pressure and the mole fractions of the gases.
4 dni temu · Match each vocabulary word with its definition. Match the items in the left column to the items in the right column. 1. cation 2. ion 3. anion 4. ion charge
