Question 3 3.1 Consider 3.5 kg of austenite containing 0.95 wt% C, cooled to below 727 °C. a) What is the proeutectoid phase? b) How many kilograms each of total ferrite and cementite form? c) How many kilograms each of pearlite and the proeutectoid phase form?
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- These are all interconnected questions, abiding to bartleby rules. Problem #1: The plant makes liquid CO2 by treating dolomitic limestone with commercial sulfuric acid. The dolomite analyzes 68% CaCO3, 30% MgCO3, and 2.0% SiO2; the acid is 94% H2SO4 and 6.0% H2O. a. Draw the complete diagram (DO NOT FORGET THIS) b. What are the balanced chemical reaction equations? c. What is the pounds of CO2 produced per ton of dolomite? d. How much sulfuric acid was used to convert CaCO3 to CaSO4? e. How much sulfuric acid was used to convert MgCO3 to MgSO4? f. What amount of commercial acid was used per ton of dolomite in pounds?c. The table below shows characteristics of two dopants added in Czochralski growth processes of crystalline silicon. In both, a mass M of the dopant was added to 1 kg of silicon. Growth 01 Silicon mass Dopant mass Dopant atomic weight (molar mass) Distribution coefficient (ka) 1 kg M 74.9 g/mol 0.3 1.0 x 10¹5 cm- Growth 02 1 kg M 31 g/mol 0.36 Doping concentration 22 As shown in the table above, we got doping of 1.0 x 10¹5 cm3 for the first process (Growth 01), what is the doping concentration that we will get in the second process (Growth 02) ? A) 0.5 x 10¹5 cm-3 B) 2.0 x 10¹5 cm-³ Answer C) 2.9 x 10¹5 cm-3D) 3.4 x 10¹4 cm-3In a given alloy of Nb-Vd: * in the given 24 wt % Nb - 76 wt % Vd alloy with the density of the pure Nb of 8.57 g/cm' and density of the pure Vd of 6.10 g/cm', what is the number of Nb atoms per cubic centimeter (cm') if the atomic mass of Nb is 92.90638 g/mol? a. 1.5728 x 10° Nb atoms b. 1.01945 x 1022 Nb atoms c. 2.81822 x 1014 Nb atoms d. 1.24626 x 1020 Nb atoms
- STATEMENTS: A - kaolinite is composed of a silica tetrahedral sheet and alumna octahedral sheet joined together through sharing of hydrogen atoms. B - kaolinite is a non-expanding due to the hydrogen bonding between basal atoms. A- both statements are trueB- neither statements are trueC- only statement A is true D- only statement B is trueTopic: Equilibrium Phase Diagram QUESTION 1 A 50 wt% Pb-50 wt% Mg alloy is slowly cooled from 700C to 400C. (a) At what temperature does the first solid phase form? (b) What is the composition of this solid phase? (c) At what temperature does the liquid solidify? (d) What is the composition of this last remaining liquid phase? Composition (at% Pb) 10 30 40 70 100 700 1200 600 a +L Ma Pb M 1000 500 800 400 Mg Pb 600 300 400 200 a + MgPb 100 MgPb 200 MgPb 20 40 60 100 (Mg) Composition (wt% Pb) (Pb) 1 (5) aungeedueRefer to the phase diagram below. A copper-nickel alloy of composition 70 wt% Ni-30 wt% Cu is slowly heated from a temperature of 1300°C. (a) At what temperature does the first liquid phase form? (b) What is the composition of this liquid phase? (c) At what temperature does complete melting of the alloy occur? (d) What is the composition of the last solid remaining prior to complete melting?
- Q/ Correct the under line words 1-Ferrous alloys above 6.67%ls has structure of FeC+ Cementite. 2- Ferrous alloys have FCC. structure at temp. Of 25 - 723 C° and temp. 1294 - 1538c° 3. The difference between gas carburizing and pack carburizing is the atmosphere type (liquid or gas) 4. Steel of 2.13 % C can be used for feeds applications 5. The yield strength of high alloy steel can be increased by adding No, Mg. Ti elements 6-Steel of (1.6 1.9) % Mn + (0.3_0.4)% C has higher strength than high carbon steel but more 3.14% Mn steel because ductile 7. Ni and Cr adding give pearlite phase at R.T. and such steel can hardened by annealing 8. at high temp. ferritic steel is used because such steel don't transferred to berlitic structure during cooling to R.T. and remain ferritic Structure 9. mealable cart iron has good machinability because graphite noduler act as chip breakers Flakes 10.pearlite phase when cooling to 723C° give structure of Fe;C +cemintite 11. Sulpher in cast iron ,its…1. Generate a spreadsheet that allows the user to convert the concentration of one element of a two-element metal alloy from weight percent to atom percent. 2. Using the spreadsheet in (1.), calculate the atoms per cubic centimeter of metal alloy (N). Given Data: Weight percent metal (A): 45 % Density (A) Atomic weight (A) Weight percent metal (B): 55 % Density (B) Atomic weight (B) : 8.7 g/cm³ : 23.26 g/mol : 4.5 g/cm³ : 53.12 g/molThe maximum solid solubility of carbon in ferrite occurs at 0.022 wt% C and 727 ° C, the eutectoid composition is 0.76 wt% C, the maximum solid solubility of carbon in austenite occurs at 2.14 wt% C and 1147 ° C, and the cementite composition is 6.7 wt% C. For 2122 g of a 3.2134 wt% C steel at 726 ° C, what will be the mass of carbon present as part of a compound?(a) 67.9 g(b) 74.2 g(c) 58.7 g(d) 83.5 g
- swot analysis for saudi ceramics.1. Derive the coordination number and atomic packing factor of BCC. 2. Compute the density of lead and molybdenum. 3. Calculate the radius of a tantalum atom, given a density of 16.6 g/cm³, and an atomic weight of 180.9 g/mol. Show your solution. 4. Sketch a tetragonal unit cell, and within that cell indicate locations of the 1 1 % and % % % point coordinates. 5. What are the indices for the directions indicated by the two vectors in the sketch below? Dineiction 2 ty 0.3 nm Direction 1 6. Draw an orthorhombic unit cell, and within that cell a (021) plane 7. Draw a monoclinic unit cell, and within that cell a (200) plane.Consider we have a silicate glass composition, this composition as shown below in percent by weight 15Na₂O +5K₂O +2.5MgO +9.5 CaO +6 BaO + 5Al₂O3 +57 SiO₂- First, convert this composition to mole percent. Then classify each oxide added to the glass according to Sun's bond criteria. According to this classification, is this composition make glass or not? Min MO K Mg Ca Al Si Valance 1 1 2 2 2 3 4 Dissociation energy per MOX (in Kcal.) 120 115 222 257 260 402 424 Coordination Number 6 9 6 8 8 4 4 Molecular weight of oxides is shown below Oksitler (Molekül Agri): Na,O (61.97), KO (94.18), MgO (40.31), CaO (56.08), Bao (153.33), ALO, (10156), 50, (60.08) Single Bond Strength (Kcal/mole) 20 13 37 32 33 101 106