Porosity is calculated is the ratio between the pore volume of a medium and its total volume, and it is expressed as n=Vv/Vt. The Vv refers to the pore or void's volume, and it can have air (Va) and Water (Vw).
Know MoreSince porosity is inherently a fraction, it can be expressed as a number between 0 and 1, where a higher decimal indicates a higher level of porosity. As the level of porosity increases, the volume of the solids within the medium decreases, and vice versa. Porosity is also expressed as percentage by multiplying the fraction by 100. Hence, 0.2 porosity is equivalent to a 20 percent porosity.
Learn MoreThe basic metric units for liquid volume are the liter and the milliliter. Little difference exists between the metric liter and the quart, which is used to measure volume in the U.S. One quart is equivalent to 1.06 liters, and one liter equivalent to 0.95 quart, according to About.com.
Full Answer >One liter is the equivalent of approximately 0.2642 gallons. As both terms are measurements of volume, one can convert between the two by utilizing the fact that there are about 3.785 liters per gallon.
Full Answer >A bag of cement weighs 94 pounds. Concrete mix typically uses five bags of cement, or 470 pounds, per yard of concrete to be poured. Concrete mix includes rocks and sand along with cement.
Full Answer >Conversions are very simple once you know the proper equation. In the case of converting pounds to kilograms, the equation you need to know is the weight in pounds divided by 2.2046 equals the weight in kilograms.
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