heat of formation

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heat of for·ma·tion

the heat (expressed in calories or joules) absorbed or liberated during the (hypothetic) reaction in which a mole of a compound is formed from the necessary elements, in elemental form.
References in periodicals archive ?
H]" are Dewar resonance energy, Randic index, heat of formation for the reference structure, the number hydrogen atoms in polyenes (I), respectively.
Newman, The heat of formation of calcium aluminate monocarbonate at 25 [degrees]C, J.
They merely retain their original heat of formation, gradually radiating it away with time.