knall-gasn.

/ˈknalɡas/

Forms: Also knallgas and with capital initial.

Etymology: < German knallgas, < knall bang, detonation + gas gas.

Chemistry.

Any explosive mixture of gases, esp. one of two volumes of hydrogen with one of oxygen.

ΘΚΠ

the world > matter > chemistry > physical chemistry > gaseous phase > [noun] > any explosive mixture of

knall-gas1899

1899 R. E. Baynes tr. O. E. Meyer Kinetic Theory of Gases iii. 86 (table) Knallgas. [Note] This is the mixture of hydrogen and oxygen produced by electrically decomposing water.

1910 Encycl. Brit. VI. 28/2 The combustion of ‘knallgas’ (a mixture of hydrogen and oxygen) to water-vapour.

1923 Jrnl. Chem. Soc. 123 1026 Berthelot measured the initial rates of the flame in hydrogen and in carbon monoxide Knall-gas..; he also made a similar series with hydrogen and with ethylene Knall-gas.

1924 Nature 8 Mar. 373/2 The explosion of an undiluted 2 CO + O₂ ‘knall-gas’.

1927 W. A. Bone & D. Townend Flame & Combustion in Gases xxxiv. 432 In cases where excess of either hydrogen or oxygen was present in the system, the observed rate was still..proportional to the partial pressure of the ‘knall-gas’ present.

1969 J. H. Ottaway & F. M. Irvine tr. H. Netter Theoret. Biochem. iii. 72 The reverse reaction (the Knall-gas reaction) 2H₂ + O₂ = 2H₂O releases the same energy [as is absorbed in the forward reaction].

This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020).

单词	knall-gas
释义	knall-gasn. /ˈknalɡas/ Forms: Also knallgas and with capital initial. Etymology: < German knallgas, < knall bang, detonation + gas gas. Chemistry. Any explosive mixture of gases, esp. one of two volumes of hydrogen with one of oxygen. ΘΚΠ the world > matter > chemistry > physical chemistry > gaseous phase > [noun] > any explosive mixture of knall-gas1899 1899 R. E. Baynes tr. O. E. Meyer Kinetic Theory of Gases iii. 86 (table) Knallgas. [Note] This is the mixture of hydrogen and oxygen produced by electrically decomposing water. 1910 Encycl. Brit. VI. 28/2 The combustion of ‘knallgas’ (a mixture of hydrogen and oxygen) to water-vapour. 1923 Jrnl. Chem. Soc. 123 1026 Berthelot measured the initial rates of the flame in hydrogen and in carbon monoxide Knall-gas..; he also made a similar series with hydrogen and with ethylene Knall-gas. 1924 Nature 8 Mar. 373/2 The explosion of an undiluted 2 CO + O₂ ‘knall-gas’. 1927 W. A. Bone & D. Townend Flame & Combustion in Gases xxxiv. 432 In cases where excess of either hydrogen or oxygen was present in the system, the observed rate was still..proportional to the partial pressure of the ‘knall-gas’ present. 1969 J. H. Ottaway & F. M. Irvine tr. H. Netter Theoret. Biochem. iii. 72 The reverse reaction (the Knall-gas reaction) 2H₂ + O₂ = 2H₂O releases the same energy [as is absorbed in the forward reaction]. This entry has not yet been fully updated (first published 1933; most recently modified version published online December 2020). < n.1899
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