What does cell, standard voltaic, daniell's. mean?
Definitions for cell, standard voltaic, daniell's.
cell, standard voltaic, daniell's.
This dictionary definitions page includes all the possible meanings, example usage and translations of the word cell, standard voltaic, daniell's..
The Standard Electrical Dictionary
Cell, Standard Voltaic, Daniell's.
A zinc-copper-copper sulphate couple. Many forms are used. Sometimes a number of pieces of blotting paper are interposed between two plates, one of copper--the other of zinc. The paper next the copper is soaked in copper sulphate solution, and those next the zinc in zinc sulphate solution, of course before being put together. Sometimes the ordinary porous cup combination is employed. The cut shows a modification due to Dr. Fleming (Phil. Mag. S. 5, vol. xx, p. 126), which explains itself. The U tube is 3/4-inch diameter, and 8 inches long. Starting with it empty the tap A is opened, and the whole U tube filled with zinc sulphate solution, and the tap A is closed. The zinc rod usually kept in the tube L is put in place, tightly corking up its end of the U tube. The cock C is opened, which lowers the level of the solution in the right-hand limb of the U tube only. The tap B is opened and the copper sulphate solution is run in, preserving the line of separation of the two solutions. The copper rod is taken out of its tube M, and is put in place. India rubber corks are used for both rods. As the liquids begin to mix the mixture can be drawn off at C and the sharp line of demarcation re-established. In Dr. Sloane's standard cell two test tubes are employed for the solutions and a syphon is used to connect them. Oxidation of the zinc lowers the E. M. F.; oxidation of the copper raises it. With solutions of equal sp. gr. the E. M. F. is 1.104 volts. If the copper sulphate solution is 1.100 sp. gr. and the zinc sulphate solution 1.400 sp. gr., both at 15° C. (59°F.), the E. M. F. will be 1.074 volt. Clean pure zinc and freshly electrolyzed copper should be used. Fig. 79 STANDARD DANIELL CELL--FLEMING'S FORM.
Numerology
Chaldean Numerology
The numerical value of cell, standard voltaic, daniell's. in Chaldean Numerology is: 7
Pythagorean Numerology
The numerical value of cell, standard voltaic, daniell's. in Pythagorean Numerology is: 1
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