Elementary Chemistry |
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Page 161
... energy is degraded in the change from ordinary to red phosphorus ; the quantity of energy degraded , or rendered less available for doing work , is equal to nearly 25,000 gram - units of heat - energy per 62 grams M. E. C. 11 222 223 of ...
... energy is degraded in the change from ordinary to red phosphorus ; the quantity of energy degraded , or rendered less available for doing work , is equal to nearly 25,000 gram - units of heat - energy per 62 grams M. E. C. 11 222 223 of ...
Page 162
... energy : red phosphorus contains less energy than an equal mass of ordinary phosphorus . The red variety of phosphorus is more stable , and less easily undergoes chemical change , than the ordinary variety . Arsenic is known in two , or ...
... energy : red phosphorus contains less energy than an equal mass of ordinary phosphorus . The red variety of phosphorus is more stable , and less easily undergoes chemical change , than the ordinary variety . Arsenic is known in two , or ...
Page 183
... , we shall briefly glance at the relations between chemical changes and the changes of energy which invariably accompany them . 260 261 CHAPTER XIV . RELATIONS BETWEEN CHEMICAL CHANGES AND 255-259 ] 183 CHEMICAL AFFINITY .
... , we shall briefly glance at the relations between chemical changes and the changes of energy which invariably accompany them . 260 261 CHAPTER XIV . RELATIONS BETWEEN CHEMICAL CHANGES AND 255-259 ] 183 CHEMICAL AFFINITY .
Page 184
... energy of the system . Energy is the power of doing work . Work is the " act of producing a change of configuration in a system in opposition to a force which resists that change . " If one system does work on another system , one loses ...
... energy of the system . Energy is the power of doing work . Work is the " act of producing a change of configuration in a system in opposition to a force which resists that change . " If one system does work on another system , one loses ...
Page 185
... energy which have accompanied these changes of composition and of state . Of two equal quantities of energy one may be more 262 available for doing work than the other . Thus , in order to cause thermal energy to do work it is necessary ...
... energy which have accompanied these changes of composition and of state . Of two equal quantities of energy one may be more 262 available for doing work than the other . Thus , in order to cause thermal energy to do work it is necessary ...
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acids to form affinity alcohol alkali allotropy ammonia ammonium ammonium chloride antimony aqueous solution atom of carbon atom of hydrogen atom of oxygen atomic theory atomic weight basic oxides bismuth bromine Chap chemical change chemical properties chlorine chromium combining weight composed composition copper decomposed definite directly interacting elements and compounds energy form salts gaseous molecules gases gasified grams H₂O H₂SO haloid compounds heat hydrides hydrochloric acid hydrogen and oxygen hydrogen chloride hydroxide interact with acids iodine iron kinds of matter liquid M₂O magnesium mass mercury metals mixture molecular and atomic molecular weight nitric acid nitrogen non-metallic obtained occur oxidised oxygen phosphorus physical potash potassium chloride produced quantity ratio reacting weight reactions represented rubidium selenion shew shewn sodium solid specific gravity structural formulae substances sulphate sulphide sulphuric acid tellurium temperature tube valency vols weight of hydrogen weight of oxygen zinc