Figure 3. Comparison of thermal images during the oxidation of tartaric acid with different initial temperatures (left column: initial state while adding the catalyst, middle column: while running the reaction, and right column: at the temperature maximum)

From

Experiments to Introduce Students into the Temperature Dependence of the Reaction Rate

Marcel Emmert, Konrad Heß, Patrick Gräb, Ekkehard Geidel

World Journal of Chemical Education. 2020, 8(2), 92-99 doi:10.12691/wjce-8-2-5