Darwinism designates a distinctive form of evolutionary explanation for the history and diversity of life on earth. Its original formulation is provided in the first edition of On the Origin of Species in 1859.
The enthalpy - or internal energy - of a substance is a function of its temperature and pressure. The change in internal energy with respect to change in temperature at fixed pressure is the Specific Heat at constant pressure - cp.
Endothermic (and exothermic) analysis only accounts for the enthalpy change (âH) of a reaction. The full energy analysis of a reaction is the Gibbs free energy (âG), which includes an entropy (âS) and temperature term in addition to the enthalpy.he term was coined by Marcellin Berthelot from the Greek roots endo- , derived from the word endon (á¼Î½Î´Î¿Î½) meaning within and the root therm (Î¸ÎµÏÎ¼-) meaning hot.. The intended sense is that of a reaction that depends on absorbing heat if it is to proceed.