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.
In quantum physics, energy is related to the frequency of a particle-wave (although here too if you have a wave packet the expected energy is going to be related to the probability amplitude of finding the particle at a given frequency/energy).