which variables must be controlled and in what manner to produce diamond from graphite?

Q: The electronic structure of a doped semiconductor is shown here.  1.)Is this an example of an…

A: Semiconductors can be defined as the materials whose conductivity lie between metals and insulators.

Q: Calculate the heat, in kJ, exchanged in the conversion of 20.0 g of steam at 104 °C to water at 10.5…

A:

Q: Assume that a GaAs semiconductor has a lattice constant a=7.5 Å, and the atoms of Ga and As are hard…

A: According to Bartlbey rules, expert have to attempt only 1 question unless specified so please post…

Q: Draw a ternary diagram of CaO-SiO2-Al2O3 where you pinpoint locations where common minerals found in…

A: The ternary diagram of CaO-SiO2-Al2O3 represents the computational depiction of melting point…

Q: explain why graphite is a good solid lubricant

A: Why graphite is a good solid lubricant ?

Q: What are some advantages and disadvantages of each of the vitreous silica and soda-lime glass types…

A: Vitreous silica is made from silica which is converted to glass. Soda lime in addition of silica…

Q: A sample of an alkali metal that has a BCC unit cell is found to have a mass of 1.000 g and a volume…

A: Given : Mass of alkali metal = 1 g Volume of alkali metal = 1.0298 cm3 Volume of hydrogen = 539.29…

Q: describe the follwoing? are dislocations nessesary or bad for us? additionally define 3 types of…

A: It's necessary. Dislocations play an essential role in the plastic deformations of crystalline…

Q: Explain why diamond is harder than graphite. Why is graphite an electrical conductor but diamond is…

A: We know that both diamond and graphite are made of carbon. However, diamond is harder than graphite…

Q: A sample of an alkali metal that has a B.C.C unit cell is f0und t0 have a mass of 1.000 g and a…

A: Alkali metals react with water to produce hydrogen according to the equation M + H2O ------> MOH…

Q: A recently developed variation of the Mond process carries out the first stepat higher pressures and…

A: Temperature given = 150˚C. Conversion of ˚C to K:

Q: How is the steel used for the manufacture of metal structures and pipes for the transfer of…

A: Production of ingots1. Molten steel is manufactured by melting iron ore and coke (a carbon-rich…

Q: Explain why diamond is harder than graphite and why is graphite an electrical conduct but diamond is…

A: Carbon has two main allotropic forms - diamond and graphite. These both Allotropes contain Covalent…

Q: How do you explain the statement: copper can contain up to 40% Zn and still be single phase?

A:

Q: List the major classes of minerals and discuss the main chemical characteristic of each class.

A: Minerals are classified based on their chemical constitution. Mineral resources are finite and…

Q: Which of these statements about alloys and intermetallic compoundsis false? (a) Bronze is an example…

A: Alloy can be formed from metals or metals with other elements. Intermetallic is a metallic alloy…

Q: Which variables must be contolled and in what manner to produce Diamond from Graphite?

A: Carbon exists in three forms as follows: Graphite Diamond Fullerene Diamond is the hardest form of…

Q: Increasing the temperature will affect the conversion of graphite to diamond form? Express it in…

A: Carbon and its allotropes: The element with atomic number 6, symbol 'C' and belonging to group 14 is…

Q: What is difference between the structure of diamond and graphite?

A:

Q: Find the distance between the crystalline levels of copper at level (111), noting that the single…

A:

Q: Why do high pressures favor the formation of the diamond from graphite?

A: Higher pressure will favor the formation of the diamond form graphite.

Q: Discuss the need for a high-Tc superconductor.

A: High-Tc superconductor stands for high temperature superconductor. The materials that behave as a…

Q: formula mass, and the size of the atoms. What conclusion(s) can you draw about the material?

A: This material might be ice. The density of water in its liquid form is greater than the density of…

Q: Hardenability of steel is influenced by the type and character of the quenching medium. Which of the…

A: Dear student this question is related to hardness of steel.

Q: arsenic is a suitable element for doping a pure semiconductor and convert it into an accept True or…

A: Doping is the process of adding impurities to intrinsic semiconductors to alter their properties.…

Q: a) For diamond and graphite carbonnanomaterials, which are two allotropes of carbon, would…

A: (a) Carbon is able to form many allotropes (formally formed forms of the same substance) due to its…

Q: From which category of materials would you select a material best suited for building a vessel to…

A: Iron is used to make various alloys, such as stainless steel which is manufactured by mixing iron…

Q: Calculate the density of each of the following metals from the data given: (a) aluminum, fcc…

A: Given: (a) fcc structure and atomic radius of 143 pm. (b) bcc structure and atomic radius of 227 pm.

Q: Name the two most important allotropes of sulphur. Which one of the two is stable at room…

A: The two most important allotropes of sulfur are given below, That is, Rhombic form and Monoclinic…

Q: Which of these element would convert pure silicon into a n-type semiconductor upon doping? a.…

A: n-type semiconductor is a type of extrinsic semiconductor in which pure semiconductor material such…

Q: If you want to dope GaAs to make an n-type semiconductorwith an element to replace Ga, which…

A: Compound semiconductors have an average of four electrons per atom that is total eight valence…

Q: Define the term Ceramics? Give some examples?

A: The materials that are resistant to corrosion, hard yet brittle is known as ceramics.

Q: What is the difference between an n-type semiconductor and a p-type semiconductor?

A:

Q: A crystalline form of molybdenum has a face centered cubic structure. If the radius of a molybdenum…

A:

Q: which of the following minerals would crystallize early from a cooling silicate magma ? biotite,…

A: Sequence of minerals crystallizing from magma is called Bowen reaction series.

Q: Classify each of the following as a conductor, insulator, or semiconductor: (a) carbon (graphite);…

A: Conductors are those that allow the charge to pass through them while insulators don't allow the…

Q: How much heat must be supplied to produce a gas composed of rubidium ions, Rb+(g), and electrons…

A: According to Hess law  If two or more thermochemical equations can be added together to give a final…

Q: Coal and diamond are two different forms of carbon, which is denser?

A: The arrangement of carbon in diamond atom is more tightly packed as the structure of diamond is such…

Q: 5. Consider the properties of four substances (A, B, C and D) in the following table. Substance A B…

A: Given table is :  Consider the properties of the four substances, which substance is most likely…

Q: What is the coordination number of atoms in the diamond structure?

A: A diamond is a precious stone and crystalline form of pure carbon with its arranged atoms.

Q: Shown here are sketches of two processes. Which of theprocesses refers to the ductility of metals…

A: Since Ductility is the physical property of a material associated with the ability to be stretched…

Q: What is the main component of glass?a) Al2O3 b) SiO2 c) CaF2 d) SiC

A:

Q: 1. What are the principal natural processes that affect the petrophysical properties of sedimentary…

A: The main petro-physical properties of sedimentary rocks are thermal diffusivity, conductivity,…

Q: 2. Calcium Flourite, CaF2, has a structure based on the fec lattice and a basis with Ca at 000 and…

A: Given  CaF2 has FCC structure. Ca(000),F(1/4 1/4 1/4),F(3/4 3/4 3/4)

Q: Define the term Semiconductor Type? Which element would you dope into germanium to create a p-type…

A: Conductor: Conductors are materials that allow flowing of heat and electricity through them due to…

Q: Explain how these vacancies allow oxide ions to move through the material.

A: The oxide ions move through the material is as follows.

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.