单词 | ideal gas |
释义 | > as lemmasideal gas ideal gas n. Physics a hypothetical gas (which actual gases approach more or less closely in their behaviour) for which the product of the pressure and the volume of a given mass is proportional to its absolute temperature; also called perfect gas. ΘΚΠ the world > matter > chemistry > physical chemistry > gaseous phase > [noun] > ideal gas perfect gas1850 ideal gas1876 1876 Proc. Royal Soc. 1875–6 24 456 When a gas is heated under a constant volume, we shall have in the case of a perfect (ideal) gas α = α'. 1948 S. Glasstone Textbk. Physical Chem. (ed. 2) iii. 192 The volume is proportional to the absolute temperature. This relationship..is the basis of an ideal gas scale of temperature. 1999 New Scientist 5 June 54/3 There are a constant number of particles in a unit volume of an ideal gas at standard temperature and pressure. < as lemmas |
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