Fernandez-Torres, Maria J. How to do an energy balance in the ABSENCE of chemical reaction URI: http://vertice.cpd.ua.es/60425 DOI: ISSN: Abstract: A solved problem showing how to tackle the determination of the increment of enthalpy for an open system with no reaction in the context of chemical engineering is presented. Keywords:Enthalpy, Chemical engineering, Introduction to chemical engineering, Energy balance, No reaction, Open system video