Znanost v vsakdanjem življenju

Why do some reactions get hot?

Combustion releases energy to the surroundings; at constant pressure this is described by a negative enthalpy change.

Kratek odgovor

Combustion releases energy to the surroundings; at constant pressure this is described by a negative enthalpy change.

Kaj se v resnici dogaja?

Znanost si lažje zapomnimo, ko definicijo povežemo z nečim merljivim ali opazljivim.

At constant temperature and pressure, ΔG combines enthalpy and entropy to indicate thermodynamic spontaneity.

Znanost si lažje zapomnimo, ko definicijo povežemo z nečim merljivim ali opazljivim.

Uporabna miselna slika

Chemical reactions rearrange bonds and redistribute energy. If the reacting system transfers energy to its surroundings as heat at constant pressure, its enthalpy change is negative.

Poglobite se

Enthalpy · Gibbs Energy

Viri

IUPAC · NIST · BIPM