A Competent Authority is the body, which has the authority to act on behalf of the government of a member state to ensure that the requirements of the medical devices directives are carried out in that particular member state.
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) â 2 H2O(g)
The flaw in Dalton's theory was corrected in principle in 1811 by Amedeo Avogadro. Avogadro had proposed that equal volumes of any two gases, at equal temperature and pressure, contain equal numbers of molecules (in other words, the mass of a gas's particles does not affect the volume that it occupies).