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State the Functions of oxide layer (i) To mask against diffusion or ion-implant, (ii) To passivate surface electrically and chemically. (iii) To isolate one device from a
Two compartments each of 1m 3 capacity are connected by a valve and insulated from the surroundings and from each other. One compartment contains saturated steam at 683.6 kPa and
What is the effective nuclear charge of 2s for Fe?
Give example of Allotropy The element carbon has two common allotropes: diamond, where the carbon atoms are bonded together in a tetrahedral lattice arrangement, and graphite
,Potassium-42 is a radioisotope that nutritionists use to determine whether the body is effectively using potassium at the cellular level. The half-life of potassium-42 is 12.4 hou
names for : A , B , C , D , E , F ,..........., X , Y , Z .
Styrene rubber (GR-S or Buna-S or SBR or Ameripol): Styrene butadiene rubber (SBR) is prepared by the copolymerization of butadiene (75%) and styrene (25%) in an emulsion styrene
How do we prepare trihydric alcohols?
Q. How to produce Nitrogen on Industrial Level? Ans. Nitrogen is produced by the fractional distillation of liquid air. Air is cooled to liquefy it. The liquid is then all
Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/
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