Air density depends on elevation, temperature, pressure and dew point.
At sea level (1013 millibar) and at zero degrees Celcius, 1kg of air has a volume of close to 780 litres.
Therefore 780 litres/min = 1 kg/min of air at those conditions.
or
1 litre/min = 0.00128 kg/min of air at those conditions.
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The measurement of the grams of water in a kilogram of air is called specific humidity.
Water
No, 1 liter of ice cream is not equal to 1 kilogram. The density of ice cream can vary depending on its ingredients and air content. Generally, the density of ice cream is lower than that of water, which means 1 liter of ice cream will weigh less than 1 kilogram. To accurately convert between volume (liters) and mass (kilograms) for ice cream, you would need to know its specific density.
The speed of sound in air is approximately 343 meters per second. To convert this to kilometers per minute, we need to multiply by 60 seconds (1 minute). Therefore, the sound would travel 20,580 meters in 1 minute, which is equivalent to 20.58 kilometers.
You can convert in w.c. to feet per minute and then convert fpm to CFM. FPm is 4005 times the square root of the pressure. So to convert 1 " w.c. to fpm its the square root of 1, which is 1 times 4005, which is 4005 fpm. Then you multiply the fpm by the area of the space the air is moving through. So if you have 1 " wc moving through a hole that's 1 square foot in area, that's 4005 cubic feet per minute.