Volume Meaning

What is Volume:

Volume means, in a general way, the corpulence, bulk or size of a thing. It comes from the Latin volume, which means 'roll', in reference to the scrolls of papyri, parchment or cloth where the manuscripts were located before the appearance of the book, hence today a book is also called a volume, whether it is a complete work or of each one the volumes that constitute it.

In natural sciences, volume is considered the space occupied by a body, that is, its physical magnitude comprised in three dimensions: length, width and height. The unit of measurement for volume is the cubic meter (m3).

A practical experiment to measure the volume of an object is to place it in a graduated cylinder with a little water. The difference in level of the liquid with the object submerged in and without it is taken as a reference of its volume. Although there are, of course, mathematical formulas that allow us to calculate the volume of different geometric bodies, such as a cylinder, a sphere, a cube, a pyramid, a prism or a cone.

See also Experiment.

The usefulness of volume measurement and its application is wide and varied within the scientific field. In Chemistry, for example, it is used to calculate the molar volume of a substance, as well as to determine the atomic volume of a chemical element, considering its atomic mass and density. For Medicine, for its part, it is essential to measure corpuscular volume in the study of blood.

Volume also refers to our perception of the intensity of sound. It is calculated according to the sound power level and its unit of measurement is decibels or decibels (dB). We use the word daily: “Turn down the music; We are going to lose our voices from shouting so much ”.

Specific volume

The specific volume corresponds to the space occupied by the unit of mass. In that sense, it is the inverse magnitude of density. Consider, for example, an iron block and a pumice stone that are exactly the same. They both occupy the same space, that is, they have the same specific volume, but because iron has a higher density, their specific gravities differ enormously. In the International System it is measured in m3 / kg.

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