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What are the main sources of electrical resistance in a metal?
The factors that affect the electrical resistance of a metal are impurity, temperature and alloying. The free mean path of an electron is the mean distance it travels between successive collisions. For an ideal crystal with no impurities and imperfections the mean free path at 0 K s infinite. That is, there are no collisions and the electrical conductivity is ideally infinite. Introduction of solute atoms into the crystal results in collisions, reducing the mean free path and the conductivity.
Wet air containing 4.0 mole% water vapor at 76°F and 14.8 psia is passed through a column of calcium chloride pellets. The pellets absorb 97% of the water and none of the other con
Defines the process battery limits for a plant to produce 500,000 tonnes per year of bioethanol. You should produce a process flow diagram of the plant and obtain literature capita
If 2 grammes of zinc granules was reacted with excesss hydrocloric acid to evolued hydrogen gas which came to completion after 5 minutes. Calculate the rate of the chemical in gram
Soft-Baking Soft-baking is the step during which almost all of the solvents are separate from the photo resist coating. Soft-baking plays a very critical role in photo-imaging.
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Explain the problems of flooding and channeling in packed tower
Why protons doesn''t react which each other?
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What are the functions of oxide layer in high quality IC? Explain. Silicon has the unique ability to be oxidized into silica, which makes a chemically stable, protective and i
Explain polymerisation vinyl chloride and its applications. PVC and its applications - It is acquired from polymerisation of vinyl chloride in the presence of a catalyst as per
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