Lab Courses
B.PGP - Basic Lab Courses

In this semester, two experiments are offered in the physical chemistry basic lab course PC-GP, the Heterogeneous Reaction Equilibrium of Dissociation and Light Absorption.

In this experiment the basics of chemical equilibria are taught with the help of a heterogeneous reaction. For this purpose, the equilibrium constant of a multi-phase reaction at different temperatures is to be determined so that information about reaction enthalpy and entropy can be obtained by applying Gibbs' fundamental equations.

The experiment thus not only serves to understand the fundamentals of reaction equilibria, but also introduces the trainees to standard evaluation methods that are ubiquitous in research.

The exact course of the experiment and the tasks to be completed are described in the general practical script on Moodle. For colloquium dates and questions about the experiment, please contact the responsible experiment supervisor .

In this experiment, the fundamental principles of spectroscopy are to be explained. With the help of a photometer, the absorption spectra of cyanine dyes are recorded. The results are to be evaluated and interpreted with the help of the Beer-Lambert law and the particle-in-a-box model.

The experiment thus not only serves to provide a basic understanding of spectroscopic investigations, but also introduces students to simple models from quantum mechanics.

The exact course of the experiment and the tasks to be completed are described in the general practical script on Moodle. For colloquium dates and questions about the experiment, please contact the responsible experiment supervisor .

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Note:

All experiments will be conducted in presence this semester. For this purpose, you have been assigned a fixed internship day on which you will perform the experiment in room L204|F404 (building opposite the rooms of the internship Allgemeine Chemie, F tower, 4th floor) under the supervision of Mr. Kopp. However, this experiment can only be tackled after you have passed the colloquium, so you need to make sure you have a colloquium appointment with the appropriate assisting person in time. Please also note that if you do not pass the colloquium, a second attempt is possible, which must also take place before the attempt date. The appointments can take place in consultation with the assisting person either via video conference in Zoom or in presence.

For further questions, please contact the internship supervisor or the supervisor of the experiment.