Stefano BovinoGalli, D.D.Galli2021-01-052021-01-052019978-981-322-794-1978-981-322-795-8http://hdl.handle.net/20.500.12386/29479The interplay between chemistry and thermodynamics determines the final outcome of the process of gravitational collapse and sets the conditions for the formation of the first cosmological objects, including primordial supermassive black holes. In this chapter, we will review the main chemical reactions and the most important heating/cooling processes taking place in a gas of primordial composition, including the effects of local and cosmological radiation backgrounds.STAMPAenThermodynamics and Chemistry of the Early UniverseBook part10.1142/9789813227958_0003http://arxiv.org/abs/1807.05939v2https://www.worldscientific.com/doi/pdf/10.1142/9789813227958_00032019ffbh.book...45BFIS/05 - ASTRONOMIA E ASTROFISICA