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 Versus Exothermic Reactions. To understand the difference between two types of reactions (exothermic and endothermic), we need to explore a couple of other concepts. In addition to kinetic energy (vibrational, rotational and translational motion), molecules also have potential energy.Potential energy is energy due to position and composition.art of the energy used to create sodium from the electrolysis of sodium chloride is stored within the sodium atom as potential energy. When it was an ion and bonded to the oppositely charged chloride ion, it was at the bottom of the energy hill.