 | James Samuelson, Henry Lawson, William Sweetland Dallas - Science - 1874 - 510 pages
...instance, we must say in the first case, supposing that the reader understood that the air consists of 77 per cent, of nitrogen and 23 per cent, of oxygen, with a certain faint proportion of carbonic acid, ozone, &c., &c., that three distinct questions present... | |
 | University of Wisconsin - Engineering - 1917 - 526 pages
...oxygen necessary for combustion is obtained from the atmosphere, which is a mechanical mixture composed of 77 per cent of nitrogen and 23 per cent of oxygen by weight. Since air contains only 23' per cent oxygen by weight, the weight of air required for the complete... | |
 | William James Baldwin - Heating - 1897 - 440 pages
...apparatus. CHAPTEE XVIII. AIR. Air is a mixture whose parts are not chemically combined, consisting of about 77 per cent. of nitrogen and 23 per cent. of oxygen,...weight, when considered pure, ie, when it is in the condition best suited to support animal life. It also contains from about 10 jj „ y to -nrVfr of... | |
 | William James Baldwin - Steam-heating - 1897 - 426 pages
...apparatus. CHAPTER XVIII. AIR. Air is a mixture whose parts are not chemically combined, consisting of about 77 per cent, of nitrogen and 23 per cent, of oxygen,...weight, when considered pure, ie, when it is in the condition best suited to support animal life. It also contains from about ^ 0 jj 0 0. to 1^-5- of its... | |
 | William James Baldwin - Steam-heating - 1897 - 426 pages
...apparatus. CHAPTER XVIII. AIR. Air is a mixture whose parts are not chemically combined, consisting of about 77 per cent. of nitrogen and 23 per cent. of oxygen, by weight, wheu considered pure, ie, when it is in the condition best suited to support animal life. It also contains... | |
 | Ira Remsen - Chemistry - 1901 - 722 pages
...nitrogen and oxygen in the proportion of 79 volumes of nitrogen to 21 volumes of oxygen, or, by weight, of 77 per cent of nitrogen and 23 per cent of oxygen. The weight of a litre of air under standard conditions is 1.293 grams. Wherever air has been collected... | |
 | William James Baldwin - Steam-heating - 1908 - 582 pages
...Air is a mixture whose parts are not chemically combined, consisting of about 77 per cent, of nitroam and 23 per cent, of oxygen, by weight, when considered pure, ie, when it is in the condition best suited to support animal life. It also contains from about lfl jjo a to •j-jVir of... | |
 | Frank Eugene Kidder - Architecture - 1908 - 1784 pages
...table. Air. — Air is a mechanical mixture of oxygen and nitrogen, the proportion for pure air being 77 per cent, of nitrogen and 23 per cent, of oxygen by weight. It also contains about TABLE OF PROPERTIES OF SATURATED STEAM.* of its volume of carbonic-acid gas... | |
 | Anatomy - 1909 - 468 pages
...the proportion of seventy-nine volumes of nitrogen to. twenty-one volumes of oxygen, or by weight, of 77 per cent of nitrogen and 23 per cent of oxygen. Wherever air has been collected and analyzed, it has been found to have practically the same composition.... | |
 | Textile fabrics - 1914 - 662 pages
...the air, but are mixed together mechanically, and further, that the atmosphere of the earth consists of 77 per cent, of nitrogen and 23 per cent, of oxygen. Now it is obvious that any substance having the power to remove the 23 per cent, of oxygen from the... | |
| |
XVIII. AIR. Air is a mixture whose parts are not chemically combined, consisting of about 77 per cent, of nitrogen and 23 per cent, of oxygen, by weight, when considered pure, ie, when it is in the condition best suited to support animal life. It also... 