Germain Henry Hess

Germain Henry Hess
Germain Henry Hess
Nascimento 26 de julho de 1802
Genebra
Morte 30 de novembro de 1850 (48 anos)
São Petersburgo
Sepultamento Cemitério Luterano de Smolensky
Cidadania Genebra, Império Russo
Filho(a)(s) Adele Abich
Alma mater
Ocupação químico, médico, mineralogista
Distinções
  • Ordem de São Vladimir, 3.ª classe
  • Ordem de Santo Estanislau, 2.ª classe
Empregador(a) Universidade Imperial de São Petersburgo, Saint Petersburg Mining Institute

Germain Henri Hess (7 de agosto de 1802 - 30 de novembro de 1850) foi um químico e médico suiço que formulou a Lei de Hess, um dos primeiros princípios da termoquímica.

Estudou Medicina, Química e Geologia na Universidade de Tartu de 1822 até 1825. Foi médico até tornar-se professor de Química da Universidade de São Petersburgo em 1830. 

Sua pesquisa inicial foi a oxidação de açúcares. Suas principais pesquisas foram em jazidas de minerais russos e de gás natural na região de Baku, às margens do Mar Cáspio

Em 1834, escreveu um livro texto de Química que foi adotado por estudantes de muitas escolas e universidades russas. 

Em 1840, enunciou a Lei de Hess. Esta lei afirma que em uma reação química a quantidade de calor produzido é constante e independente do número de etapas de reação. Na verdade, seria um caso especial do princípio geral da conservação da energia

Hess publicou a obra Fundamentos de Química, um dos melhores textos de Química na Rússia durante anos. 

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