Notes on ElectrochemistryMcGraw Publishing Company, 1906 - 145 strani |
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action alkali alloy aluminium amount of electricity ampere-hour amperes anions anode aqueous solution arc furnace atomic weight calcium-carbide calories carbide carbon cathions cathode cell centimeter chamber chemical equivalent chloride circuit compound concentration conductivity conductor containing copper coulombs current density current strength decomposition deposit determined devised dilute effect elec electric charges electric current electric furnace electrical energy electrochemical equivalent Electrochemistry electrode surface electrodeposition electrodes electrolytic dissociation electromotive force electroplating element employed Faraday flow fused fusion gases given gram equivalent heat of formation hydrate hydroxyl instance ion theory ionized iron joules lead mercury metal molecules negative pole nickel obtained ohms osmotic pressure oxide oxygen particles passing phenolphthalein phenomena plates positive potassium potential quantity of electricity radium reactions resistance salts set free silent discharge silicon silver sodium sodium chloride steel substances sulphate sulphuric acid temperature termed tion tricity tube unit valency velocity voltaic pile voltmeter volts wire zinc
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Stran 28 - Now the most startling result of Faraday's law is perhaps this. If we accept the hypothesis that the elementary substances are composed of atoms, we cannot avoid concluding that electricity also, positive as well as negative, is divided into definite elementary portions, which behave like atoms of electricity.
Stran 42 - Hoff's theory of osmotic pressure holds that the osmotic pressure of a substance in solution is the same as the pressure which that substance would exert if it were in the gaseous form and occupied the same volume at the same temperature. In other words, the laws of gases apply also to dilute solutions ; the laws of gas-pressure are valid also for the osmotic pressure of solutions. The gas-equation pv...
Stran 3 - We are acquainted with matter only as that which may have energy imparted to it from other matter, and which may in its turn communicate its energy to other matter. Energy, on the other hand, we know only as that which in all natural phenomena is continually passing from one portion of matter to another.
Stran 91 - CALORIE is the amount of heat required to raise the temperature of one kilogram of water one degree centigrade.
Stran 20 - It is defined as the amount of heat necessary to raise the temperature of one gram of the substance one degree centigrade. Specific heat is expressed in calories per gram per degree Centigrade, one calorie being the amount of heat necessary to raise one gram of water from 14.5°C.
Stran 11 - A so-called negatively charged chemical atom is one having a surplus of electrons, the number depending on the valency, whilst a positive ion is one having a deficiency of electrons. Differences of electrical charge may thus be likened to debits and credits in one's banking account, the electrons acting as current coin of the realm. On this view only the electron exists; it is the atom of electricity, and the words positive and negative, signifying excess and defect of electrons, are only used for...
Stran 91 - ... calorie is the amount of heat needed to raise the temperature of one gram of water one degree centigrade...
Stran 42 - XT states that the product of the volume and the pressure of a gas is directly proportional to the absolute temperature and to the value R. •f) 7...
Stran 10 - Now there is great reason to believe that every material atom carries upon it a small electric current, if it does not wholly consist of this current.
Stran 18 - The unit of quantity shall be what is known as the international coulomb, which is the quantity of electricity transferred by a current of one international ampere in one second. Fifth. The unit of capacity shall be what is known as the international farad, which is the capacity of a condenser charged to a potential of one international volt by one international coulomb of electricity.