Q: Consider the section of multilayers wall as shown in the figure, assuming one dimensional heat flow, determine the following: I- The thickness of wall layers LI and L2 as shown in the figure. II- Inner and outer surface temperatures TI and T3 III- Rate of heat transfer per unit area (Im') through the wall. To1 = 320 °C To2 = 20 °C T2 = 240 °C T1 T2 T3 hị = 300 W/m?.C k1 k2 h2 = 50 W/m?. C kl = 10 W/m .°C %3D To2 To1 hi h2 %3D k2 = 0.5 W/m.°C L = 40 cm L1 L2

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Q: A reactor of special design un the major item of equipment in a small chemical plant. The initial co...

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Q: PROBLEM 3.7 A 400-N force P is applied at Point A of the bell crank slown. (u) Copute the moment of ...

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Q: Q2. Source (A) can supply energy 10000 kJ/min at 315 °C; Source (B) can supply energy100000 kJ/min a...

A: Given: Source (A): Energy supply q = 10000 kJ/min Temperature of heat source TH = 315 oC = 588 k Tem...

Q: 3. The second Virial coefficient of an equimolar binary vapor mixture of methane and n-hexane is -51...

A: Given that, Temperature T = 50oC The second virial coefficient of an equimolar binary vapor mixture ...

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Q: In a closed container at constant temperature an equilibrium vapor pressure is established. • The pi...

A: It is the pressure exerted by the vapor in the thermodynamic equilibrium with it's condensed phase. ...

Q: A rigid tank contains an ideal gas at 45 °C and it is being stirred by a paddle well. The paddle whe...

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Q: 7.1. A pipeline constructed of carbon steel failed after 3 years operation. On exami- nation it was ...

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Q: Paraffin waxes are used as external lubricant because: * -Improve dispersion of other additives -Hav...

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Q: 1.Commercial solvents cre commonly sold in 55-gallon drums. What is the weight in pound 1. of the ca...

A: Given that, The density of carbon tetrachloride ρ = 1.5942 gcm3 The volume of the carbon tetrachlori...

Q: Ex./ A synthesis gas analyses 6.4 % CO2, 0.1 %O2, 39%Co, 51.8 % H2, 0.6 % Cu and 2.1 % N. It enters ...

A: The given information is presented in the form of a flow chart for the process as:

Q: Why do we avoid cold and hot ?molding during the cutting process

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Q: Convert the temperatures in Parts (a) and (b) and temperature intervals in Parts (c) and (d): a) T=8...

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Q: Water stored in a large, well-insulated storage tank at 23oC and atmospheric pressure is beingpumped...

A: h= 25m m = 35m3/hr = 35m3hr.1000kg1m3.1hr3600 sec=9.72kg/sec W = 8.3kW = 8300W Q = 245kW= 245000W [h...

Q: 5. Air is supplied to a converging nozzle from a large reservoir, where the pressure and temperature...

A: Given: Pressure of the reservoir, P1 = 500 kPa = 500000 N/m2 The temperature of the reservoir, T1 = ...

Q: Sulfur dioxide (A) diffuses through a stagnant layer of air (B) of 2 cm thickness at 45oC and 1.2 ba...

A: Given: Thickness of layer z = 2 cm = 0.02 m T = 45 oC = 318 k Total pressure P = 1.2 bar = 1.2×105  ...

Q: Formative

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Q: Microwave ovens use microwave radiation to heat food. The microwaves are absorbed by the water molec...

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Q: Topic: Fluid Statics and its Applications

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Q: Paraffin waxes are used as external lubricant because: * -Improve dispersion of other additives O -H...

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Q: QI: oil fraction has API of 43 is to be distilled at uniform rate. The temperature of the vapor when...

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Q: Q2/ A heat reader of 0.045 kg mass and heat capacity 46.1 J/K reads 23.0°C. It is then completely im...

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Q: what is the transfer function which relates the hight (h) to the inlet flow (F1) the Conical tank. o...

A: The conical tank as given is:

Q: Consider the following equation: C3HB + 5 02 -> 3 CO, + 4 H2O, which underwent a combustion analysis...

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Q: BaCl2 + NazSO4 (a) How many grams of barium chloride will be required to react with 5.00 g of sodium...

A: The reaction mentioned can be written asBaCl2+ Na2SO4→ BasO4+2NaClFrom reaction it is clear that1 Mo...

Q: Q7. Show that for polytropic process of ideal gas: R (y -8) AS (Y- 1)(1 – 8)

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Q: Q2) Given an aqueous feed with dilute reactant Cae = Cae = 100 mol'm'. The reaction A+ 2B -C+D is to...

A: Given that, A + 2B → C + DaA + bB → cC + dD The initial concentration of A CA0 = 100 molm3 The initi...

Q: Q4: The reaction A 52000J/mole. 10% solution of (A) is 10% decomposed in 10 minutes at 10 °C. How mu...

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Q: A mole of argon is allowed to expand adiabatically from a pressure of 10 bar and 25 °C to 1 bar. Wha...

A: GivenAn adiabatic expansion in which,initial pressure of Argon=10 barinitial temperature of Argon=25...

Q: 01/ A fuel contains by mass 88% C, 8% H,. 1% S and 3% ash (silica). Calculate: i. The stoichiometric...

A: Given data: Composition of fuel on mass basis is given as follows: C = 88 % H2 = 8 % S =1 % Ash (sil...

Q: Carbon black is one of the additives can be dissipate charges on the surfaces of polymeric materials...

A: Since you have posted multiple independent questions in the same request, we will solve the first qu...

Q: Q6: The diffusion coefficients for carbon in nickel are given at two temperatures, as follows: T (°C...

A: Given: @T1 = 600oC = 873K, D1 = 5.5*10-14 @T2 = 700oC = 973K, D2 = 5.= 3.9*10-13 To find: Do, Qd and...

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Q: 1- The materials that can return to a near position and their original position are ----- (a) Full e...

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Q: Q3/ Convert the temperatures in Parts (a) and (b) and temperature intervals in Parts (c) and (d): a)...

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Q: 30Liters/sec is equal to m³/hour а. 101 O b. 96 О с. 143 O d. 108

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Q: Q/ A piston cylinder contains 5 kg of Ammonia at 5 °C with 500 L initial volume. At first the piston...

A: Given:Mass of ammonia, m=5 kgIntitial temperature, T1=50C=278 KInitial volume, V1=500 L=500×10-3 m3I...

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Q: Lubricant may be added to lower Tg or reduce the amount of crystallinity False O True

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Q: Q.1 A horizontal tube of 60 m lenght is connected to a water vessel at one end discharges freely int...

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Q: Molecular weight of N-Methyl-2,3-(9-hydroxymethyl-9,10-dihydroanthracene-9,10-diyl)succinimide

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Q: 1. Here is a report from a catalytic polymerization unit: Pounds per hour 15,500 Charge: Propanes an...

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Q: Q1/ A-Given FI =5.0N 30° N of E F3-10.0N 40° E of S. (a) Find the components of each vector. (b) Fin...

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Q: The COD test requires heating of the sample with the COD reagents at 150°C for 120 minutes. This is ...

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Convective Mass Transfer between Phases

Mass transfer means the transport or movement of mass using streams, phases, components, and so on from one location to another.