This could be heat of reaction the Democrats need to make this campaign finally go exothermal.    From Wordnik.com.  [CBS Faults McCain Ad Featuring Katie Couric As "Misleading"] Reference

In an exothermal chemical reaction, the energy of those electron states is lower than the energy of the electron states before the reaction, and energy is released in another form (photons, kinetic energy, etc.).    From Wordnik.com.  [Slashdot] Reference

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Finally, the samples were then slowly cooled to − 30°C (1°C/min), and the hold and onset of the freeze exothermal curve were recorded for each DSC cycle (.    From Wordnik.com.  [PLoS ONE Alerts: New Articles] Reference