CHM110H5 Lecture Notes - Lecture 10: Hydronium, Gibbs Free Energy, Calorimetry
Document Summary
The heat of ionization of a weak acid. The study of thermodynamics observes the relationship between heat/temperature and work/energy changes when a system goes from one state to another. In order to measure and understand these values a calorimeter can be used. Calorimetry is the process of measuring the amount of heat released or absorbed during a chemical reaction, this also helps determine whether a reaction is endothermic or exothermic. An effective calorimeter is considered to be an isolated system in which neither heat nor matter can enter or escape. In this experiment a coffee cup calorimeter was used to determine the heat of ionization of a weak acid, through a series of calculations that also involved calculating change in temperature ( t) and change in enthalpy ( h). The experiment was split into three components, part a was between hot and cold water, part b was between hcl and naoh and part c was between ccl3cooh and naoh.
