The New chemistryD. Appleton and Company, 1875 - 326 páginas |
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Página 23
... pounds to the square inch , or , making the correction referred to above , seventeen million million pounds to the square inch . Of course , such numbers convey no impression , except that of vast magnitude ; and you will obtain a ...
... pounds to the square inch , or , making the correction referred to above , seventeen million million pounds to the square inch . Of course , such numbers convey no impression , except that of vast magnitude ; and you will obtain a ...
Página 33
... pound of water , that is , con- vert it into steam , we must exert a mechanical power which is the equivalent of 822,600 foot - pounds , that is , a power which would raise nearly four tons to the height of one hundred feet , and , as ...
... pound of water , that is , con- vert it into steam , we must exert a mechanical power which is the equivalent of 822,600 foot - pounds , that is , a power which would raise nearly four tons to the height of one hundred feet , and , as ...
Página 38
... nitely into space . In the case of our atmosphere , this tension is so great that the air at the level of the sea exerts a pressure of between EXPANSIVE ENERGY IN GASES . 39 fourteen and fifteen pounds 38 THE THREE STATES OF MATTER .
... nitely into space . In the case of our atmosphere , this tension is so great that the air at the level of the sea exerts a pressure of between EXPANSIVE ENERGY IN GASES . 39 fourteen and fifteen pounds 38 THE THREE STATES OF MATTER .
Página 39
... pounds to the square inch , we more fre- quently describe it by the height in inches ( or centi- metres ) of the mercury - column , which it is capable of sustaining in the tube of a barometer . The tension of the air is balanced by the ...
... pounds to the square inch , we more fre- quently describe it by the height in inches ( or centi- metres ) of the mercury - column , which it is capable of sustaining in the tube of a barometer . The tension of the air is balanced by the ...
Página 43
... pound of hydrogen gas at the freezing - point is as great as that of a pound - ball moving 6,097 feet per second , and the energy in an equal volume ( a little over 6.6 cubic yards when the barometer is at 30 inches ) of any other true ...
... pound of hydrogen gas at the freezing - point is as great as that of a pound - ball moving 6,097 feet per second , and the energy in an equal volume ( a little over 6.6 cubic yards when the barometer is at 30 inches ) of any other true ...
Palavras e frases frequentes
acetic ether aëriform alcohol alkali atom of oxygen atoms of hydrogen Avogadro burning butyric acid calcic called carbonic dioxide charcoal chemical change chemist chemistry chlorine color combination combustion consists contain criths cubic cubic centimetres cule definite elementary substances elements energy equal ether evidence example experiment fact film flame formic acid gases glass grammes H₂O heat Hence hydrate hydrochloric acid hydrogen hydrogen gas hydrogen-atoms illustrate inch iron lecture light liquid litre mass material metal microcriths mole molecular structure molecular weight molecule of oxygen molecule of water molecules nitric acid nitro-glycerine nitrogen nitrous oxide notice number of molecules obtained oxide oxygen oxygen gas particles phenomena phosphorus polarized pole potassic pounds pressure principle proportions quantivalence radical reaction result salt simple sodium solid solution specific gravity sugar sulphur symbol temperature theory tion vapor volatile volume wholly
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