| 单词 | standard temperature and pressure |
| 释义 | > as lemmasstandard temperature and pressure standard temperature and pressure n. Chemistry and Physics a set of standard conditions under which experiments are performed and which may be used as a basis for calculations involving quantities that vary with temperature and pressure; spec. (as defined by IUPAC in 1982) a temperature of 273.15 kelvin (0° Celsius) and a pressure of 100,000 pascals (approx. 1 atmosphere); abbreviated STP.There are a number of different standards, but each one specifies a particular value of temperature lying somewhere in the range of 0 to 25 degrees Celsius, and a particular value of pressure lying somewhere in the region of 1 atmosphere. ΚΠ 1793 R. Kerr tr. A. Lavoisier Elements Chem. (ed. 2) 114 The gas weighs 0.695 parts of a grain for each cubical inch, in the common standard temperature and pressure mentioned above. [No corresponding clause in the French original.] 1797 Jrnl. Nat. Philos. June 115 Even if distilled water were at hand, it would seldom happen that the times of the standard temperature and pressure would agree with those of the experiment. 1892 Proc. Acad. Nat. Sci. Philadelphia 1891 24 The sample of gas so obtained reduced to standard temperature and pressure is then driven out of the burette. 2018 A. L. Dicks & D. Rand Fuel Syst. Explained (ed. 3) 53 According to Avogadro's law, the volume of 1 mol of any gas is 2.24x104 cm 3 at standard temperature and pressure. < as lemmas |
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