Law of Combining Volumes Definition

Chemistry Glossary Definition of Law of Combining Volumes

Definition of Law of Combining Volumes:

A relation stating that the relative volumes of gases in a chemical reaction are present in the ratio of small integers (assuming all gases are at the same temperature and pressure).

Also Known As:

Gay-Lussac's Law

Examples:

In the reaction

2 H2(g) + O2(g) → 2 H2O(g)

2 volumes of H2 react with 1 volume of O2 to produce 2 volumes of H2O.