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heat of formation

British  

noun

  1. chem the heat evolved or absorbed when one mole of a compound is formed from its constituent atoms

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

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The secret of success is to seek brighter fireflies wandering well away from the searchlight — that is, young planets still glowing from the heat of formation, in orbits far from their stars.

From Nature

The marked activity of chloramine as a chlorinating agent could be predicated from its heat of formation, which is 8,230 calories.

From Project Gutenberg

Heat of Combustion and Constitution.—In the article Thermochemistry a general account of heats of formation of chemical compounds is given, and it is there shown that this constant measures the stability of the compound.

From Project Gutenberg

By causing compressed acetylene to dissociate under the influence of an electric spark, Mixter measured its heat of formation as -53.3 calories.

From Project Gutenberg

If the water remains gaseous, as it must do in a flame, the heat of formation is reduced by about 10 calories.

From Project Gutenberg