![]() ![]() It would exert if it alone filled the volume.) See also vapor pressure. (The partial pressure of a gas is the pressure This states that the pressure exertedīy a mixture of gases equals the sum of the partial pressures of the componentsĪnd holds only for ideal gases. Which he financed by giving private tuition.įirst attracted to the problems of gas chemistry through his interest in Thereafter he devoted his life to research Philosophy at New College, and began observing the behavior of gases, butĪfter six years he resigned. At first after he moved to Manchester he taught mathematics and natural These ideas laid the foundations for his theory that all matter is composed of discrete 'atoms'. In 1793 he moved to Manchester and, in the same year, published Meteorological Observations in which he suggested that the processes of evaporation and condensation were not chemical changes of state but rather changes in the physical form of water. He also collectedīutterflies and amassed a vast number of dried plants. Observations which he kept up for the remainder of his life. It was during this period that Dalton started a journal of meteorological Of teaching in the village school, he joined his brother who was a master In 1776, when only ten years old, he entered the service of Elihu Robinson,Ī wealthy Quaker, who taught him mathematics. Older brother, and helped his father in the shop where they wove cloth. As a young boy, he worked in the fields with his John Dalton was an English chemist and physicist best known for his atomic theory (see below).ĭalton was born of a Quaker family at Eaglesfield, a small village in theĮnglish Lake District. ![]()
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