“Will It Rain?” Activities Investigating Aerosol Hygroscopicity and Deliquescence

• L. Caetano-Silva ^[2] ; A. G. Allen ^[2] ; M. L. A. M. Campos ^[1] ; A. A. Cardoso ^[2]
  1. [1] Universidade de São Paulo

     Universidade de São Paulo

     Brasil

     
  2. [2] Departamento de Química Analítica, Instituto de Química, Universidade Estadual Paulista. Brasil
• Localización: Journal of chemical education, ISSN 0021-9584, Vol. 92, Nº 4, 2015, págs. 672-677
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • Climate change and its consequences seem to be increasingly evident in our daily lives. However, is it possible for students to identify a relationship between these large-scale events and the chemistry taught in the classroom? The aim of the present work is to demonstrate that chemistry can assist in elucidating important environmental issues. Simple experiments are used to demonstrate the mechanism of cloud formation, as well as the influence of anthropogenic and natural emissions on the precipitation process. The experiments presented show the way in which particles of soluble salts commonly found in the environment can absorb water in the atmosphere and influence cloud formation.