Energy, entropy and change

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

Wëssenschaft bleift am Kapp, wann eng Definitioun mat eppes Moossbarem oder Beobachtbarem verbonne gëtt.

Mixing two gases usually increases the number of accessible microscopic arrangements and therefore increases entropy.

Wëssenschaft bleift am Kapp, wann eng Definitioun mat eppes Moossbarem oder Beobachtbarem verbonne gëtt.

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