Zinātne ikdienā
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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Īsā atbilde
Combustion releases energy to the surroundings; at constant pressure this is described by a negative enthalpy change.
Kas īsti notiek?
Zinātne paliek atmiņā, ja definīcija ir saistīta ar kaut ko izmērāmu vai novērojamu.
At constant temperature and pressure, ΔG combines enthalpy and entropy to indicate thermodynamic spontaneity.
Zinātne paliek atmiņā, ja definīcija ir saistīta ar kaut ko izmērāmu vai novērojamu.
Noderīgs priekšstats
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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.