Tiede arjessa
Why do some reactions get hot?
Combustion releases energy to the surroundings; at constant pressure this is described by a negative enthalpy change.
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Lyhyt vastaus
Combustion releases energy to the surroundings; at constant pressure this is described by a negative enthalpy change.
Mitä oikeastaan tapahtuu?
Tiede jää mieleen, kun määritelmä yhdistyy johonkin mitattavaan tai havaittavaan.
At constant temperature and pressure, ΔG combines enthalpy and entropy to indicate thermodynamic spontaneity.
Tiede jää mieleen, kun määritelmä yhdistyy johonkin mitattavaan tai havaittavaan.
Hyödyllinen mielikuva
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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.