A molecule is a group of atoms held together by chemical bonds. In quantum mechanical…

The equipartition theorem, also known as the law of equipartition, equipartition of energy or simply…

In the late 18th century, great progress in physics had been made. Classical Newtonian physics…

All objects with a temperature above absolute zero (0 K, -273.15 oC) emit energy in the…

"During the latter part of the 19th century, physicists were justly proud of the apparent…

Vapor-liquid equilibrium is paramount in engineering applications such as distillation, environmental modeling, and general process…

What IS an ideal gas? Recall from general chemistry that the volume, pressure, temperature, and…

Knowledge of the geochemical distribution of elements involves elucidation of the relative and absolute abundances of the…

The fundamental reaction that produces the huge amounts of energy radiated by the Sun and…

Chemical element, also called element, any substance that cannot be decomposed into simpler substances by ordinary…