action active added ammonium amount atomic weight base becomes calcium called cent chapter chemical chemistry chloride color combination common complete compounds concentration contains copper crystals decomposed decomposition dilute displace dissolved easily effect electricity elements employed energy equal equation equilibrium example fact formula gases give given heat Hence hydrochloric acid hydrogen hydroxide increase insoluble interaction ionized ions iron known latter lead less liberated liquid material means measured mercury metals method mixed mixture molecular molecules nature negative nitrate nitric nitrogen obtained oxide oxygen passing phosphorus physical positive potassium practically precipitate prepared present pressure properties proportions pure quantity reaction reduced remains removed salt separate silver sodium solid soluble solution substance sulphate sulphide sulphuric acid temperature tion tube unit valence vapor volume whole zinc
Page 321 - ... and a lowering in the temperature is required to increase the yield of chlorine. The rule is obvious, and applies to all reversible reactions: When the temperature of a system in equilibrium is raised, the equilibrium point is displaced in the direction which absorbs heat.
Page 529 - D and passed between the circular poles of a powerful electromagnet 0, the field of which is such as to bend the rays back again through an angle <j> more than twice as great as 6.
Page xxiii - Pepys, what am I to do, here is a letter from a young man named Faraday; he has been attending my lectures, and wants me to give him employment at the Royal Institution. What can I do?" "Do?" replied Pepys, "put him to wash bottles; if he is good for anything he will do it directly, if he refuses he is good for nothing.
Page xxiii - My desire to escape from trade, which I thought vicious and selfish, and to . enter into the service of Science, which I imagined made its pursuers amiable and liberal, induced me at last to take the bold and simple step of writing to Sir H. Davy...
Page 118 - The pressure exerted by each component in a gaseous mixture is proportional to its concentration in the mixture, and the total pressure of the gas is equal to the sum of those of its components.
Page 43 - One of the greatest contributions of science to life is the discovery that progress is, in general, made by the evolutionary process. Einstein does not replace Newton; he merely supplements him. There are no revolutions in science. In so far as Newtonian mechanics was a body of experimental facts it is eternally true. The whole of Newton is incorporated in Einstein. Let the revolutionary reformer ponder well that fact.
Page 190 - ... material in some fashion. Since equal volumes are often the exact quantities required for the action, it appears most likely that in equal volumes of different gases (at the same temperature and pressure) the numbers of molecules present are equal. This addition to the molecular hypothesis was first suggested by an Italian physicist, Avogadro (1811).
Page 202 - The question of transportation lies at the root of all industrial success, and the revolution in transportation which has taken place during the last half century has been the most important factor in the growth of the new industrial conditions.
Page 333 - ... solutions of acids, bases, or salts, having no radical in common, are mixed, double decomposition occurs. Any acid will react with a salt of a different acid, any base with a salt of a different base. Any acid will react with any base and salts containing no common radical will also react in pairs. c. Conductivity. — Solutions of acids, bases, and salts in water are all conductors of electricity. Acids, bases, and salts are therefore called "electrolytes.