표준 조건(STP)
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정의
기체 측정의 IUPAC 기준 상태: 0°C(273.15 K)와 101.325 kPa(1 atm)에서 이상 기체 1몰의 부피는 22.414 L이다.
설명
Standard conditions allow meaningful comparison of gas volumes and reaction rates across laboratories. One mole of oxygen at STP occupies 22.414 L; at room temperature (25°C, 100 kPa) — the newer IUPAC standard conditions — it occupies 24.789 L, about 10.6% more. Always check which standard a source uses, since older chemistry texts use 0°C while newer ones use 25°C.
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