...proposition is divested of all hypothesis, all reference to the mechanical structure of gases, it becomes the law that equal volumes of gases at the same temperature and pressure, whether simple or compound, are almost exactly chemically equal quantities, and once in possession...

...Professors Clausius of Bonn and Clerk Maxwell of Cambridge. We have the best reasons for believing that equal volumes of gases at the same temperature and pressure contain the same number of molecules or particles, which molecules or particles are all of the same size. They...

...(see §§ 33, 39, and 44). And in 1811, an Italian chemist named Avogadro propounded the hypothesis that equal volumes of gases, at the same temperature and pressure, contain equal numbers of atoms. But it is evident that this latter assertion cannot be reconciled with the numbers assigned...

...weights of the molecules of all gaseous bodies. 30. The statements may be put more shortly in this form : Equal volumes of gases, at the same temperature and pressure, contain equal numbers of molecules. Consider the following chemical changes; the temperature and pressure remaining constant. (1) Hydrogen...

...same temperature, exhibit the same osmotic pressure. This corresponds to Avogadro's law for gases: that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. Measurements show that acids, bases and salts in solution in water exhibit abnormally high pressures,...

...same temperature, exhibit the same osmotic pressure. This corresponds to Avogadro's law for gases: that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. Measurements show that acids, bases and salts in solution in water exhibit abnormally high pressures,...

...more is required. Facts similar to the ones given above caused Avogadro to make the statement in 1811 that equal volumes of gases at the same temperature and pressure contain equal numbers of molecules, and this statement is usually called Avogadros Law. It was neglected for a long time, because chemists...

...chemical molecule was soon recognized, while the famous hypothesis of Avogadro that equal volumes of all gases at the same temperature and pressure contain equal numbers of molecules still further extended the usefulness of the theory. The whole superstructure of modern chemistry has...

...mixture of elements ; and hence it follows that argon is not of a compound nature. According to Avogadro, equal volumes of gases at the same temperature and pressure contain equal numbers of molecules. The molecule of hydrogen gas, the density of which is taken as unity, is supposed to consist of two...

...all, a confirmation of Avogadro's hypothesis, originally deduced from purely chemical considerations, that equal volumes of gases at the same temperature and pressure contain the same number of molecules. Moreover, the theory teaches him that the hypothesis is absolutely true...