What is an eudiometer?
Eudiometer is a tool used to measure the change of gas volume. The first incarnations were designed to measure the amount of oxygen in the atmosphere. The eudiometer, which is made of glass, usually has an elongated shape of a tube with a scale, similar to a barometer or a thermometer.
Each eudiometer has one end closed, the other end is open to fill with water. It is usually immersed in a container of water, with the closed end pointing up. When immersion occurs, the gas sample enters the tool. This creates an electrical spark between two wires sealed into the eudiometer and allows the graduation to measure a change in the volume of the gas. Some tool users rely on Mercury for immersion instead of water.
Eudiometer is most often produced as a graded cylinder. This means that it resembles a glass container with measuring signs on the sides. The eudiometer is usually available in the measurement range of 50 to 100 mills (ml) or in grams. The graded form of the cylinder was first used in the middle of the 20th century and since it is notA more approach type of eudiometer.
Although tall, narrow cylinder is the most common shape, the eudiometer comes in other forms. Some of them come in the shape of U, with one end slightly longer than the other. There are also t shapes characterized by small shortened arms.
The term "eudiometer" is of Greco-Roman origin. "EU" means "good" and "dio" means God. The second part is a reference to God's residence as in an atmosphere, sky or sky. Part of the "meter" indicates the measurement.
The first mention of the eudiometer was in 1777, when Italian physicist Alessandro Volta wrote in his letters on a laboratory device that can measure air quality. However, the invention of the tool is often attributed to other Italian physicists Marsiliolandriani, who described the 1885 publication with the name Ricerche Fisiche Intono Alla Salubrità dell'aria , or physical research on healthy air . He the theorythat air can be chemically analyzed and gases in the atmosphere can be insulated using a laboratory device.
Englishman Joseph Priestley preceded both men to discover gases such as ammonia and hydrogen and oxygen chloride. However, the tool he used was described as a pneumatic trough.