Eduard-Job-Foundation for Thermo- and Matterdynamics

Experiment 5.2: Heating of Silver Oxide

Experiment: Annealing of Silver Oxide

Blackish brown silver oxide is moderately heated by a burner.

The presence of oxygen can be demonstrated with the glowing splint test. White shiny silver metal remains in the test tube.

The thermal decomposition of silver oxide can be described by: 


The process does not take place at room temperature because there exists no potential drop.

However, because a gas, that means a substance with strongly negative temperature coefficient α, should be formed we expect that this process will begin at a high enough temperature. 

Video (mpg4, 1:07)