noun
law of mass action
A principle in chemistry stating that the rate of a chemical reaction is proportional to the product of the concentrations of the reacting substances.
質量作用の法則は化学平衡を理解する上で重要だ。
The law of mass action is important for understanding chemical equilibrium.
A direct translation of the English term 'law of mass action', composed of 質量 (mass), 作用 (action), and 法則 (law).