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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.

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

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.

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

The thermal effect of the “alcohol” group C�OH may be determined by finding the heat of formation of the alcohol and subtracting the thermal effects of the remaining linkages in the molecule.