Determinação do teor alcoólico da cachaça: uma abordagem das propriedades intensivas

• Autor(a) principal: Monteiro, Isabel Cristina de Castro [UNESP]
• Data de Publicação: 2012
• Outros Autores: Vaz, Ednilson Luiz Silva [UNESP], Codaro, Eduardo Norberto [UNESP], Acciari, Heloísa Andréa [UNESP], Monteiro, Marco Aurélio Alvarenga [UNESP]
• Tipo de documento: Artigo
• Idioma: por
• Título da fonte: Repositório Institucional da UNESP
• Texto Completo: http://dx.doi.org/10.5007/2175-7941.2012v29n2p229; http://hdl.handle.net/11449/134982
• topic: Surface content; Cachaça; Interdisciplinarity; Alcoholic content; Tensão superficial; Teor alcoólico; Cachaça

The Resolution number 3 of the Câmara de Educação Básica (CEB)/Conselho Nacional de Educação (CNE), published in 1998, June 26 (BRASIL, 1998), which established the National Curriculum Guidelines for High School Education, emphasizes the interdisciplinarity, in its 8th Article. However, almost fourteen years later, the reality in most of our schools is the adoption of a merely disciplinary methodology, vis-à-vis the difficulty related to educational planning activities of this kind. In this paper, we present a proposal of an interdisciplinary experimental activity that addresses the concept of surface tension, connecting physicists and chemists. The idea is that students determine the alcohol content of “cachaça” and discuss the concepts of surface tension forces between equal molecules, similar and different.