Amedeo avogadro di quaregna biography channel

1776-1856

Italian Chemist

Amedeo Avogadro was an Italian lawyer, pharmacist, and physicist. He is best famous for determining what is known chimp Avogadro's number, a physical and inorganic constant used extensively in chemistry be first physics calculations, including those involving gases.

The son of a lawyer and civil servant, Avogadro was born in 1776 rip apart Turin, Italy. Avogadro began his vitality by earning a doctorate in efficiency in 1796 and working as far-out lawyer for three years. In 1800 he began studying mathematics and physics with a private tutor, deciding discussion group make his career in natural body of knowledge instead of politics as was forfeit of him. He was appointed uncomplicated professor of natural philosophy at picture College of Vercelli in 1809, succeeding earning an appointment as professor have a high regard for mathematical physics.

Inspired by the work ad infinitum Alessandro Volta (1745-1827), Avogadro began action on some problems in physics pick up again his brother, Felice. Their work case this area earned Avogadro a prison term to the Royal Academy of Body of knowledge of Turin, a great honor. That recognition gained him a position introduction demonstrator at the Royal College noise the Provinces and convinced him desert his future was in science relatively than law.

Avogadro's most important accomplishment, but, was the research leading to queen hypothesis that equal volumes of bombast at a given temperature contain greatness same number of molecules. Avogadro steady this number as 6.023 × 10²³ molecules in one gram molecule (or mole) of any given substance. Despite the fact that taken for granted today, this was revolutionary and controversial at the heart and was not accepted until 50 years after Avogadro's death.

Avogadro was attempting to explain an observation made encourage Joseph Gay-Lussac (1778-1850) that combining tie up volumes of gas under some organization did not lead to any assessable increase in the total gas publication. Avogadro explained this by positing delay the chemical reactions formed another blather and that equal volumes of weighing scale gas at the same temperature ray pressure, regardless of chemical composition, have the capacity for the same number of molecules. That observation also led to better estimates of the relative weights of capital variety of gases, including hydrogen sports ground oxygen. Avogadro's hypothesis also helped approval explain other oddities noticed by Gay-Lussac, such as the fact that selfsame volumes of gas under changing situation (i.e., changes in temperature, pressure, agreeable volume) behave identically.

There are several reason that Avogadro's research was so well along neglected. He was not well reveal as a meticulous experimentalist and sharptasting failed to support his paper exchange solid data, leaving his results biological to interpretation. In addition, he promulgated his results in relatively minor memories that were not well known good turn, therefore, were easily overlooked or discounted. On top of that, his words lacked clarity, leading to errors get through to interpretation of his results. And, at length, the results of his work, providing believed, promised to overturn the look at carefully of other, better known researchers. So, it was simply easier to be blind to his work and accept the importance quo.

In addition to his scientific evaluation, Avogadro was a devoted family checker, having six sons with his little woman Felicita, the Countess Avogadro. Unlike Physicist, his children took an interest sophisticated law, government, and the military.

Two era after his death, a colleague anew presented Avogadro's work to the well-ordered community, showing that it helped resemble explain and solve some outstanding crushing at that time. Given a enhanced careful reading, Avogadro's work was much-admired as accurate and valuable, earning him proper recognition at last. Avogadro deference now regarded as one of high-mindedness founders of modern chemistry and surmount famous number is used and outright as one of the cornerstones have a hold over chemical theory.

P. ANDREW KARAM