This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...is H = cM(t--U) This quantity must be added to the right hand member of equation (130). The calorimeter usually consists of a beaker, stirrer and thermometer for each of which cM must be calculated and their sum be taken in the above equation. If we set -i = 2--M = 2jm (132) then m is the mass of water which ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...is H = cM(t--U) This quantity must be added to the right hand member of equation (130). The calorimeter usually consists of a beaker, stirrer and thermometer for each of which cM must be calculated and their sum be taken in the above equation. If we set -i = 2--M = 2jm (132) then m is the mass of water which has the same thermal effect as the calorimeter. This mass is called the water-equivalent of the calorimeter. Therefore the total heat gained by the water and calorimeter will be cw O + M ) (f--'2) and we have = JMfe=0 ( 33) 90. Exercise 41. Water-Equivalent of a Calorimeter. The calorimeter is a cup of thin metal, preferably of aluminium. which is placed inside a large vessel upon a flat piece of cork or other poor conductor. In the calorimeter are a stirrer and a thermometer. Let m be the water-equivalent in grams of the calorimeter including stirrer and thermometer; also let the calorimeter contain Mw grams of water at a temperature t2; suppose the resulting temperature, due to adding Mi grams of water at tv finally comes to be t. Then the exchange of heat is represented by the equation cw(M + m) (t2--t)=c M1(t--U) (134) or, solving for m m------M, (135) f2--t In practice weigh the calorimeter empty and dry, then fill about one-third full with water at a temperature about fifteen degrees above the temperature of the room and weigh again. The difference is Mw. Next add water at a temperature, about ten degrees below room temperature, until the resulting temperature after vigorous stirring is about room temperature. The temperature of the cold and warm water should be carefully determined, just before mixing, by means of a thermometer reading to tenths of a degree centigrade. The resulting temperature is to be taken...
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Seller's Description:
Very Good- Many illustrations of instruments and experiments as well as experiments, formulas, etc. Includes electricity, sound, light, etc. The authors were both Professors at the University of Michigan. The publisher was a book store in Ann Arbor. Green cloth covers with gilt spine lettering. There is some shelfwear to the extremities. Previous owner name on the end paper, else a clean and tight book.; B&W Illustrations; 8vo 8"-9" tall; 255 pages.
