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(OSEC) Analise as afirmativas abaixo:I. Entalpia (H) pode ser conceituada como a energia global de um sistema.II. Uma reação exotérmica apresenta D H positivo.III. O calor de reação de um processo químico será dado por D H.a) somente I é corretab) somente II é corretac) somente III é corretad) as afirmativas I e II são corretase) as afirmativas I e III são corretas.
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