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# What is the volume of air at any given pressure ie 700kPa?

192021

There are many formula's for calculating the volume of air. The most basic is the ideal gas law. For this law, the answer would be V = R * T / (P * MW), where R = a constant, 10.73, T is the temperature in Rankine, which is Fahrenheit + 459.7, P is the absolute pressure in PSIA, and MW is the molecular weight, in this case use 28.5. The answer will be in cubic feet per pound of air. For example, if I had a container of air and the pressure was reading 10 pounds on the gauge, and the temperature was 70, then the formula would be as follows: PSIA = PSIG + 14.7, so PSIA = 24.7. T = 70 + 459.7, so T = 529.7. V = 10.73 * 529.7 / (24.7 * 28.5). The answer is in cubic feet per pound of air. The volume would be that of its container regardless of pressure.

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## Related Questions  For a given volume and pressure, the mass of the air contained in that volume (density) will decrease as the temperature increases.  When air particles are compressed, the density is increased. There is more pressure within a region or within a container. There are more molecules in a given volume, and this can cause the air to heat up. - The pressure of the air increases, as does its temperature, as its volume decreases. Because its density is lower. At constant pressure, a given volume of hot air thus weighs less than the same volume containing colder air. ---------------------------------------- remark: This can be easily seen from the equation for ideal gases p*V = n*R*T, with p: pressure V: volume n: number of particles within the given volume R: ideal gas constant T: Temperature Assuming constant volume, warmer air has more pressure. if the dna sequence of a gene was tacttaccgagctagact then what kind of mutation has occured This has nothing to do with the question of air pressure. Either a change of temperature or a change of volume can affect air pressure, according to Boyle's Law of Gases. Increasing temperature=increased air pressure Decreased volume=increased air pressure The reverse is also true. Decreased temperature=decreased air pressure Increased volume=decreased air pressure At a given temperature, the higher the air density, the higher the air pressure. The volume would increase as the pressure of the expanding air increases. In accordance with Boyle's Law, if the volume of the air is restricted, the pressure will increase. If there is no volume restriction, the air will expand. The greater the air Pressure, the greater the Air Density at any given Altitude. The factors are: -The volume that the air takes up (the greater the volume the less the pressure) -The amount/number of molecules of air (the more gas the higher the pressure) -The temperature (the higher the temperature the higher the pressure) and that's it lol  DENSER MORE PRESSURE PRESSURE PRESSURE LOOK AT SCIENCE TEXT BOOK DONT CHEAT ON WIKI Water has more density than air.  temperature, pressure, volume, and density temperature, pressure, volume, and density Temperature, volume, height , and water vapor are variables that change air pressure. The air can change by the temperature and volume held in the shape! Volume is directly related to the air pressure the player applies to it. Atmospheric pressure is reduced with increasing water vapor because the water has a lower molecular weight than dry air. The same number of molecules occupy a given volume at a given pressure, so the total mass of water vapor laden air is lower than dry air. If you add up the weight of a column of the wet air it will weigh less than the same column filled with dry air, hence, wet air has a lower air pressure. Air pressure is related (among other things) to the number of atoms per unit volume. If there are less atoms per unit volume, then there are less atoms that push outward; in other words, less pressure.  A gas, like air, will change volume depending on the pressure. The higher the pressure, the smaller the volume. Gas, the motor vehicle fuel, is a liquid which will retain its volume. Temperature is not directly tied to volume, its related to pressure. Increasing the temperature will increase the pressure--only if volume is held constant. That is were volume and temperature are related, through pressure. However, if you increase the volume it does not change the temperature. A syringe is similar to a balloon in effect on pressure. The more air you insert, the less space for fluid. The more pressure exerted on it, the less volume of air and the more the liquid would fill up the space.

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