Write the theory, state, and explain two properties and two applications on each topic you select. Choose any three topics out of total six topics indicated below. Superconductors; Semiconductors; Materials and devices for energy generation and storage; Membranes; Biomedical materials; Miniaturization in materials science.

Q: 1. In an experiment, what volume of O2 (g) at 0°C and 760 mmHg is produced when ) A of current is…

A: This question is related to electrolysis

Q: Tin is semiconductor La O F.b

A: Is Tin (Sn) a semiconductor.

Q: Account for the relative bandgap energies of semiconductors interms of periodic trends?

A: Semiconductors are materials which have a conductivity between conductors (generally metals) and…

Q: Discuss the conductivity of copper and zinc metals by drawing figures according to molecular orbital…

A: Highest occupied molecular orbital(HOMO) having electrons combined to form valence band and lowest…

Q: Write detailed answers to the following. a. Discuss the structure of diborane. b. Explain how…

A:

Q: Strontium titanate (SrTiO3) is another wide bandgap semiconductor that has been investigated for use…

A: For H2|H+ electrode the value of standard reduction potential is 0V. For O2|H2O electrode the value…

Q: in meters) of an electromagneti

A:

Q: Silicon carbide, SiC, has the three-dimensional structureshown in the figure.(a) Name another…

A: a) To determine another compound that has same structure: The compound that has similar crystal…

Q: Diffusion does not have an effect on______. a) Doping in semiconductors b) Production of alloys c)…

A: Diffusion doesn't not have an effect on heat treatment of metals .  In production of alloy the metal…

Q: How will you operationally define chemical bonding when subjected to its conductivity?

A: A question based on chemical bonding, which is to be accomplished.

Q: Explain and elaborate in 10 sentences the reason why non crystalline materials does not exhibit…

A: Allotrope of the perticular element  is formed due to different arrangements or different…

Q: С. Describe and explain two important properties of sodium in liquid ammonia.

A: Liquid ammonia is a polar solvent which gets self ionized and forms ammonium cation and amide anion.

Q: Discuss the following structure of AB2 and ABO3 type oxides in detail with proper diagrams and…

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Q: Predict the reaction of Cr2+, Fe2+, Cl-, HClO, Zn(s) when blowing air into an acidic aqueous…

A:

Q: Describe the bonding in calcium oxide, CaO, in terms of bands composed of Ca and O atomic orbitals.…

A: SOLUTION: Step 1: The Calcium ion is an Alkaline earth metal and give up the 2s orbital electrons…

Q: c) Suggest and explain in detail one heat treatment procedure that can strengthen or harden the…

A: A metal when it is hardend,it is heated to a point where the element transform into a solution.

Q: (iv) Arrange the hydroxides of Group II elements (Be to Ba) in decreasing order of solubility…

A: (iv) The decreasing order trend of solubility of group II hydroxides in water is written as follows;…

Q: Construct a vis-à-vis comparison of different alloyed materials. Cite the advantages, disadvantages,…

A: Alloys are elements which are mixture of different metals or metal with non-metal . It alloys to…

Q: Which groups of elements have the best and which the poorest electrical conductivities? Explain.

A: For an element to conduct electricity, it must have free electron to move around.

Q: (a) A alkali metals react withhydrogen to form hydrides and react with halogens to formhalides.…

A: Alkali metals are the elements of the periodic table placed in group-1. They are most…

Q: In how many allotropic forms does arsenic exists?

A: Allotropes of an element are forms of the same element with different physical and chemical…

Q: Discuss the following sentences: 7- The role of PbO in glass.

A:

Q: How is Vanadium a Problem and an opportunity?

A: Interpretation: How vanadium is a problem and an opportunity is to be determined.

Q: 1. Construct a vis-à-vis comparison of different alloyed materials. Cite the advantages,…

A: Materials that are formed by the fusion of 2 or more metals are called alloys. They exhibit wide…

Q: Two solids are shown below. One is a semiconductor andone is an insulator. Which one is which?…

A: Since in insulators, the gap between the conduction band and valence band is very high. Hence there…

Q: Explain how metallic conductors, semiconductors, and insulators are identified and explain their…

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Q: How is it possible stabilize hypochlorous acid, and is concentrated hypochlorous acid harmful to…

A: Hypochlorous acid (HOCl) is a weak acid, the chlorine atom is in +3 oxidation state in this acid.…

Q: Direct bandgap semiconductor materials generally support radiative (optoelectronic) transitions…

A: Interpretation-  To interpret why direct bandgap semiconductor materials generally support radiative…

Q: Cr20, + 14H* (aq) + 12e¯ → 2Cr(s) + 7H20 (aq) a) How many hours would it take to completely convert…

A: Answer-a Each mole of potassium dichromate has one mole of dichromate ion, therefore moles of…

Q: For the elements of groups 13 to 17 of the second period, how can they complete their valence layer?…

A: The electrons in the outermost principal energy level of an atom that can participate in formation…

Q: e. Explain with relevant points about structure, alloying elements and characteristics.

A: Alloying elements are used to alter the chemical and mechanical properties of steel to provide them…

Q: rigid, crystal lattice? Calculate the recoil free of 57 Fe atom. energy a (mc2 = 5 x 1010 eV, E, =…

A:

Q: Below are 298K thermochemical data for gallium metal in the solid and liquid phases. Determine the…

A: From thermodynamics we can Write ΔG =  ΔH - TΔS At phase change of melting point  ΔG = 0 so, Tmp =…

Q: a. How many types of metal bond theories are there? Explain all theories in detail. b. Compare the…

A: A) Metal bond theories - Valence bond theory Molecular orbital theory Crystal field theory…

Q: uickly plezz!! The levigating agent role in Suppositories manufacturing ??

A: Suppositories are solid medications. It enter the body through the rectum, vagina, or urethra.…

Q: What are the main differences between Diamagnetic and Paramagnetic materials?

A: Diagmagnetic substances have zero unpaired electron and paramagnetic materials contain unpaired…

Q: Who invented the first successful process for the commercial production of artificial graphite, as…

A: Introduction :  Graphite is basically the allotrope of carbon. It is a black, shiny mineral that has…

Q: hy do oxides of phosphorus and sulfur have varied oxidation number?

A: The oxidation state of an element is the representation of the charge acquired by that element after…

Q: The U.S. Department of Energy has set the benchmark of 6% H by weight for an acceptable hydrogen…

A: given materials : NaAlH4, LiAlH4, LaNi5H6,  TiFeH2

Q: isomerisation

A: Dear student I have given answer to your question in the image format.

Q: Beryllia (BeO) ceramics have some use but show only poor resistance to strong acids and bases. Write…

A: The chemical equation for the reaction of BeO with a strong acid and with a strong base has to be…

Q: Qs) who many allotropes does carbon element has? Which is harder? Q») Balance the following reaction…

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: Which is the least reactive alkali metal? Why is this not expected based on standard oxidation…

A: The tendency of a metal to lose electron easily is the basis for reactivity of metal atoms.