Calculate the concentration of vacancies in copper at room temperature (25 °C). What temperature will be needed to heat treat copper such that the concentration of vacancies produced will be 1000 times more than the equilibrium concentration of vacancies at room temperature? Assume that 20,000 cal are required to produce a mole of vacancies in copper. The lattice parameter of FCC copper is 0.36151 nm.

Q: Calculate the radius of an iridium atom, given that Ir has an FCC crystal structure, a density of…

A:

Q: Dolomite has a very similar structure in which Mg substitutes for Ca in alternating layers. Assume…

A: In crystal structures, the elements with similar charges and sizes can replace one another. This…

Q: GaAs, has the zincblende crystal structure. The lattice parameter is a = 5.653 Å. 1) Calculate the…

A: Given data:GaAs, has the zincblende crystal structure. The lattice parameter is a = 5.653 Å.To…

Q: . Sketch unit cells for FCC BCC and simple cubic, give examples metals that follow each of these…

A:

Q: Superalloys have been made of nickel and aluminum. The alloy owes its strength to the formation of…

A: A cubic unit cell has 8 corners, 6 faces and 12 edges. An atom occupying a corner of cubic unit cell…

Q: 2. The equilibrium fraction of lattice sites that are vacant in silver (Ag) at 700°C is 2 x 10-6.…

A: The objective of the question is to calculate the number of vacancies.

Q: The mineral clausthalite is composed of lead selenide (PbSe). This mineral adopts the NaCl structure…

A: Unit cell can be defined as the repeating unit in crystal structure.

Q: The melting points of diamond and graphite are greater than 3550 °C, but C60 sublimes between 450…

A: The question asks about the difference in melting points between diamond, graphite, and C60, which…

Q: Calcite (CaCO3) structure compared to Dolomite ((Ca,Mg)CO3) 1. What is the coordination number of…

A: Coordination number of an atom is the number of other atoms to which it is bonded. The coordination…

Q: Suppose that a crystal lattice is composed of a structure where anions, X, occupy all o the corners…

A: Given,  a crystal lattice is composed of a structure where anions, X, occupy all of the corners in…

Q: Calculate the linear density in the [111] direction of aluminum metal. Aluminum has fcc cubic unit…

A: Unit cell is the smallest repeating unit of the crystal structure. It is the basic building block of…

Q: Calculate the volume in cubic nanometers of the unit cell of the Cu crystal structure at 40 ° C

A: Copper(Cu) has face center cubic (FCC) crystal structure with 4 atoms per unit cell.  Radius of Cu…

Q: Find the lattice constant (a) for a hexagonal closed-packed structure.

A: In a hexagonal close packed structure (HCP) ,the lattice constant is the distance between…

Q: hypothetical metal with an atomic radius of 0.171 nm has an orthorhombic unit cell for which the a,…

A: Atomic Radius of metal = 0.171 nm

Crystallography

Crystallography is the category of science that focuses on the atomic and molecular arrangements with their bonding constituting the crystal structure. It is derived experimentally and originated in the year 1912. It is a combination of two words; those are crystal, meaning a cold drop, and graph, meaning writing.