Given:
Lattice parameter, a =
Solution:
We know that for FCC, total no. of atoms in a crystal lattice = 4
let the number of atoms in Tin for alloying be 'n'
⇒ Total no. of Copper atoms in the alloy, = 4 - n
Also mass of Copper, m = 63.54 g/mol
atomic mass of Tin = 118.69 g/mol
We Know density of the crystal lattice is given by the formula:
(1)
where,
= Avagadro's number =
Putting all the values in eqn (1), we get
280.6 = 55.15n +254.16
n = 0.479 atoms/cell
Now to calculate the atomic percentage of Tin present in the alloy:
atomic percentage =
atomic % Tin present in alloy = =
atomic % Tin present in alloy = 11.98%
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Answer:
• Corona discharge means <u> </u><u>neutralization</u><u> </u><u>of</u><u> </u><u>charge</u><u> </u><u>action</u><u> </u><u>at</u><u> </u><u>a</u><u> </u><u>sharp</u><u> </u><u>point</u>
example; a pear shaped conductor, lightening conductor, van de graaf generator.
Explanation:
• In corona discharge, When a sharp conductor is placed somewhere in open space. The charges of opposite chrage attract the opposite ions in the air around that conductor.
• This increases the charge density and electric field intensity at the sharp point, this neutralises the charge at sharp point hence a discharge known as corona discharge occurs.
Answer:
Energy Saved = 6.93 x 10⁹ Btu
Cost Saved = $ 30145.5
Explanation:
The energy generated by each boiler can be given by the following formula:
Now, the energy saved by the increase of efficiency through tuning will be the difference between the energy produced before and after tuning:
<u>Energy Saved = 6.93 x 10⁹ Btu</u>
Now, for the saved cost:
<u>Cost Saved = $ 30145.5</u>
Answer:
Compressibility.
Explanation:
The compressibility of a fluid can be defined as a measure of the change in volume (density) with respect to the amount of pressure applied to the fluid. Thus, as the pressure of a compressible fluid increases, both its viscosity and density increases.
Some examples of compressible fluids are vapors, gases, air etc.
Hence, compressibility is the property that describes the amount of volume that decreases when pressure is applied to a fluid.
Additionally, the compressibility of fluids plays a significant role in the field of science such as in aerodynamics, fluid mechanics, thermodynamics etc.