Calculate the amaunt of enerqy requiral fe melt of aluminum popcons initially at 25°C. 5.0 kg (Al has AH fus =10.8KJmdl)

Q: The molar enthalpy of vaporization of benzene at 353.25 K is 30.8 kJ/mol. Calculate the duration in…

A: Given: ΔHvap = 30.8 KJ/mol. Mass of sample of benzene vaporized = 10 g Current = 0.50 A And…

Q: Determine the repeat distance, linear density, and packing fraction for BCC lithium, which has a…

A: Given: Lattice parameter = 0.35089nm Directions: [100],[110],[111] Interpretation: We have to…

Q: 2. A spherical metallic nanoparticle of diameter d; = 100 nm melts at Tma = 900 K. A smaller…

A: The melting point of nanoparticles significantly depends on the size and dimension of the particle…

Q: AG° is independent of temperature. TRUE FALSE

A: The standard gibbs free energy is the function of temperature.

Q: At room temperature, the equilibrium mole fraction of vacancies in a crystal is 10-12. Now the…

A: Chemical potential is defined as the change in energy of the system upon addition or removal of a…

Q: Data and Otbservations Initial temperature of ice 23-62 27-7°C 30 1 9.4°C Temperature of the ice and…

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Q: 3.15P) The excess electron concentration and Electic field is plotted in a bar of an n-type…

A: To Find: To find the direction of the electron drift and diffusion current flow.

Q: 3. For an iron-carbon alloy of composition 0.5 wt% C, explain which phase(s) exist(s) for conditions…

A: The system is iron-carbon alloy.

Q: How is boundary molar conductivity determined in strong electrolytes?

A: Given :  We have to tell how we can determine boundary molar conductivity.

Q: Formation water contains 10,000 ppm of NaCL, 15,000 ppm of MGSO4 and 8,000 ppm of CaCl2 . Calculate…

A: The answer is attached below-

Q: 1. From the plot of Specific Volume (g/cm³) vs Temperature of a 1.20 semicrystalline polymer,…

A: Polymer – a substance consisting of repeating subunits i.e monomers is called a polymer .…

Q: At 25 °C the molar ionic conductivities of Li+, Na+, and K+ are 3.87 mS m2 mol−1, 5.01 mS m2 mol−1,…

A: Mobility "u" formula is: Substitute the given conductivities of the given ions in this formula to…

Q: Determine the diffusion coefficient D for the diffusion of hydrogen into FCC iron at 800°C

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Q: In a step growth polymerization, there are 1.34 mol A-A type monomer, 1.33 mol B-B type monomer, and…

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Q: Referring to the Al-Si Eutectic diagram discussed on the Phase Diagrams-Lever Rule handout,…

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Q: 11- find the normality N of NaCl soluton , if w/v% = 0.85%. M.Wt =58.5? 0.145 0.0145

A: Given, w/v %=0.85%  M.Wt of NaCl = 58.5 g mol-1 Normality = ?

Q: A 90 wt% Ag-10 wt% Cu alloy is heated to a temperature within the β + liquid phase region. If the…

A: An alloy is a combination of metals or a metal combined with a nonmetal. They are combined either as…

Q: escribe the difference between the Resistance and Resistivity. (2) Wh= iton and Dolaron2 Explain in…

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Q: What is the amount of energy required (in KJ) to convert 100g of ice at -20 degrees to steam vapour…

A: Since you have asked multiple question, we will solve the first question for you.If you want any…

Q: What is the diffusion coefficient of Zinc in Copper at 750degC? * 5.3241x10-¹² m²/s 5.3241x10-1³…

A: For Zinc in Copper,  We have D0=2.4×10-5m2/s,Qd=189000J/mol Given…

Q: An aerospace manufacturer is building a prototype experi-mental aircraft that cannot be detected by…

A: Chemical reaction is process in which one or more substance called reactants get converted into…

Q: Calculate the diffusion constant of nitrogen at 20.0 ̊C and 100.0 Pa, with  = 0.43 nm^2 .

A:

Q: Suppose an alloy consists of a 75 wt% Sn-25 wt% Pb. i. List the phases present in the alloy at 185…

A: The phase diagram of Sn -Pb is given below From the diagram, composition of the phases can be…

Q: 1. What is the function of a liquid junction? 2. What causes the potential difference at the liquid…

A: Hi, we are supposed to answer one question. To get the remaining questions solved please mention the…

Q: (8) A structural steel l-beam is 15m long when installed at 200C. How much will its lengn change…

A: To determine the change in length the formula used is:   ∆L =αLο∆T ∆L = change in length  α = linear…

Q: 100.0 cm3 of a 1.234 mol.dm-3 solution of nickel(II) nitrate was added to 150.0 cm3 of a 1.178…

A: Nickel Nitrate:- Ni(NO3)2 Sodium Carbonate:- Na2CO3  1cm3 = 1ml 1dm3 = 1L  Limiting reagent:-  It is…

Q: 6. Assume you have 1kg of an alloy consisting of 85 wt% Sn and 15 wt% Pb at a temperature of 184 °C.…

A: To find out the mass of Sn needed to be added to 1 kg of alloy consisting of 85 % of Sn and 15 % of…

Q: Calculate the fraction condensed and the degree of polymerization at t = 5.00 h of a polymer formed…

A: Given that, t = 5.00 h kr = 1.39 dm3 mol−1 s−1 initial monomer concentration [A]0= 10.0 mmol dm−3…

Q: An alloy has a composition of 35wt% Pb – 65wt% Sn at 182.999 °C, determine: (1) The amount of the a…

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Q: (a) A silicon sample maintained at T = 300 K is uniformly doped with Nd = 1016cm-3 donors. Calculate…

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Q: 1] Calculate ZA and ZAA for argon at 25 °C and a pressure of 1.00 bar using d = 3.84 x 10-1º m…

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Q: What is the negative skin friction in the context of pile behaviour? How and under what conditions…

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Q: The forward-bias voltage (V) required to maintain a PN diode current (I) is a function of the…

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Q: A student measured the resistance of a 0.5 M NaCl solution to be 45 Ω. Calculate the experimental…

A: First we have to calculate the conductivity of solution which is given by the equation:-…

Q: 6.1) At the composition of 0.77% by weight C, identify the phase(s) present at 950 degrees C 6.2)…

A: Since you have asked multiple subparts in the question, we will answer the first three subparts of…

Q: Determine the weight fraction of the primary ß phase for Al-80 wt% Si alloy after it is cooled from…

A: To determine the weight fraction of the primary ẞ phase for Al-80 wt %Si alloy after it is cooled…

Q: What factor(s) will affect the magnitude of hysteresis of sorption isotherm? I. The nature of food.…

A: factor(s) will affect the magnitude of hysteresis of sorption isotherm

Q: AI-Si Eutectic, Calculate the mass fraction of the B phase, silicon, given a sample with 61.8 wt%…

A: Given, At 61.8 wt% aluminium at 576.99 oC. Formula Used Mass fraction = given masstotal mass of…

Q: Calculate the fraction condensed and the degree of polymerization at t = 10.00 h of a polymer formed…

A: Degree of polymerization can be defined as the total number of monomers present in a polymer or…

Q: Calculate the thermal conductivity of nitrogen (CV,m = 20.8 J K−1 mol−1, σ = 0.43 nm2) at 298 K.

A: The thermal conductivity (k) of the nitrogen is calculated as shown below. k=CV,m3×σ×NA×4RTπM .....…

Q: Why is adsorption phenomenon always exothermic?

A: Exothermic process are those where heat is released by the system.

Q: Calculate the energy cost of an electroplating process running at 0.71 V and 39.2 A for 3813 s…

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Q: What is proven by the result obtain with the reaction of silver nitrqte with water in the beaker?…

A: Silver Nitrate when reacted with water it goes simple ionization just as a salt in water. There will…

Q: At 20c, the surface tension of Water was found to be 71,15 MN/m while the water Standerd; value is…

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Q: -17 The diffusivity of silver in solid silver metal is 1.0 x 10 m -13 2 Is at 500°C and 7.0 x 10 m…

A: Given, The diffusivity of silver in solid silver metal = 1.0 × 10^-17 m2/s at 500 degree Celsius.…

Q: A monolayer of CO molecules is adsorbed on the surface of 1.00 g of an Fe/AI2O3 catalyst at 77 K,…

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively.…

Q: 1- A silicon wafer with crystal orientation was placed at an oxidation furnace for one hour.…

A: