質しつ量りょう作さ用ようの法ほう則そくしつりょうさようのほうそくMeanings1nounlaw of mass actionA principle in chemistry stating that the rate of a chemical reaction is proportional to the product of the concentrations of the reacting substances.質しつ量りょう作さ用ようの法ほう則そくは化か学がく平へい衡こうを理り解かいする