02: A sphere of diameter 10 mm, is initially in equilibrium at 672 K in a furnace. It is suddenly removed from the furnace and subjected to a two-step cooling process: 1-Cooling in air at 292 K for a period of (t) until the temperature reaches 607 K, hem, 10 W/m².K. 2-Cooling in water at 292 K₂ h. -1000 W/m².K, Q-3000 kg/m' k-20 W/m.K. C-1000 J/kg.K, a -6.66x10 m/s. Calculate the time t, required for cooling by air and the time t, required for cooling by water to cool the sphere from 672 K to 322 K. Given q,-0.95 e A (T-T;), a-5.69x10 W/m².K.

Q: Question 1. Derive an expression for the vapor density at the boiling point as a function of…

A: Vapor density at 25 0C = 23.4 g/m3

Q: Liquid hexane at 298 K and 1 bar has the following properties: thermal expansion coefficient (B) =…

A: Given, thermal expansion coefficient (β) = 5.2x10-4 K-1 isothermal compressibility (κ) = 17.5x10-10…

Q: 1. Is it possible to produce a Cu-Ni alloy with a minimum tensile strength of 380MPa and a ductility…

A: Given that- The desired tensile strength Cu-Ni alloy=380 MPa Desired ductility=45% EL Diagram (1)…

Q: For the reaction below (a) evaluate the residence time or space time for BR, CSTR, and PFR to…

A: A gas phase reaction is given as, 2A → B Pure A is fed with initial concentration, CA0 = 0.2 mol/dm3…

Q: Calculate ΔΗ° and AG for the following reactions at 25°C: a. Consider the reaction Al2O3 (s) +…

A: Given that Al2O3  (s)     +    2Fe (s)         →      Fe2O3   (s)         +      2Al  (s)

Q: Ethanoyl Chloride reacts with Ethanol to yield Ethyl Ethanoate and gaseous Hydrochloric Acid.…

A: Given that there are several reaction given and their enthaly of reaction are also givenwe have to…

Q: Q) A Liquid mixture containing 60 moly. acetone and 40 woler wator at 80°F is to be continiously…

A: Given data: Composition of feed is, Acetone = 60 mol % Water = 40 mol % Fraction of feed that is…

Q: Consider a system consisting of a cylinder with a movable piston containing 106 gas molecules at 298…

A: Given that- A gas cylinder has, initial gas molecules= 106 Initial temperature= 298 K Initial…

Q: 6. Water contains organic color which is to be extracted with alum and lime. Five parts of alum and…

A: Water have organic colour which is extracted with alum and lime Case 1 When 5 ppm alum and lime…

Q: A horizontal cylinder equipped with a frictionless piston contains 80 g of steam at 450 K and 125…

A: mass of steam (m)=80 g pressure (P)=125 KPa temperature(T)=450 K change in the volume ∆V=-15 L…

Q: The water-gas-shift reaction, CO(g) + H₂O(g) → CO₂(g) + H₂(g)

A:

Q: G4: A three effect MEE system operates at the following conditions: - Plant capacity = 500 ton/day.…

A:

Q: If AH > 0 and AS < 0, a reaction will be: A) Spontaneous B) Nonspontaneous C) At equilibrium D) Not…

A:

Q: A large pipe (diameter = 1 m) is carrying crude oil (SG = 0.94) at a steady flow rate of 2 m³/s. A…

A: Diameter of the pipe = 1 m Specific gravity of oil = 0.94 Volumetric flow rate = 2 m3/s Volume of…

Q: A reaction which is exothermic and has an overall increase in entropy is A) spontaneous only at high…

A: ∆G=∆H-T∆Swhere ∆G change in gibbs free energy             ∆H change in enthalpy                   ∆S…

Q: 11.2. The volume change of mixing (cm³.mol-¹) for the system ethanol(1)/methyl butyl ether(2) at…

A:

Q: . In the presence of 20,000 lb/h of air, an external gas stream is delivered into an air pollution…

A: External gas stream fed at rate = 10,000 lb/h presence of air in air pollution control device =…

Q: In the elementary gaseous phase reaction A 2R+ S, starting with a feed that is 40% A at 2 atm and…

A:

Q: Determine expressions for: (a) 8₂ and 8₂ (b) 8 and 8

A:

Q: QUESTION 3 A two-dimensional planar flow is generated between a fixed and moving vertical plates as…

A: A two dimensional planar flow is generated between a fixed and moving vertical plates. The velocity…

Q: E3E.3(b) Suppose that 6.0 mmol of perfect gas molecules initially occupies 52 cm³ at 298 K and then…

A: Given  Mole (n) = 6mmol           = 6×10-3  mole Initial volume V1 = 52 cm3 Final volume V2 = 112…

Q: Show the characteristic plots of the composition dependence of GE, HE, and TSE for the real binary…

A: The pressure of the system, P = 1.01325 bar The pressure of the system, T = 323.15 K Gas constant, R…

Q: Q1: Atmospheric air at 21 °C is flowing parallel to a flat plate at a velocity of 3 m/s. Assuming…

A: Atmospheric air is flowing to a flat plate at 21∘C. Velocity of air, V = 3 m/s Kinematic viscosity,…

Q: The decomposition of SO₂ Cl₂ is a first-order reaction: SO₂Cl2 (g) → SO2(g) + Cl2 (g) The rate…

A:

Q: The following data were obtained for the adsorption of acetone on charcoal from an aqueous solution…

A: Adsorption data for Acetone on charcoal is given. Freundlich equation constants has to be obtained.…

Q: A feed gas consisting of CH4 and CO2 is burned with excess air to produce a product gas with the…

A: Orsat analysis gives the molar composition of dry product gas Basis: 100 moles of dry flue (product)…

Q: For isothermal reactions of greater than zero order in Plug Flow Reactor (PFR) and Continuous…

A: GIVEN THAT :For isothermal reactionn &gt;0

Q: In a continuous steady-state process the following two reactions take place:   C6H12 + 6H2O  à 6CO…

A: To solve this problem, we will first write down the balanced chemical equations for the two…

Q: Consider the overall reaction AB C A possible catalyst material contains two different types of…

A: Given reaction is- A+B ↔C  Where, both A and B adsorb on X and Y catalyst sites. The mechanism is-…

Q: Give the length of the PFR having 1-in BWG 13 if the reactor volume is 4.7 m^3

A: BWG stands for “Birmingham Wire Gauge” (or “Stubs Iron Wire Gauge”). Each BWG number (example from…

Q: 1. The pyrolysis of ethane is performed at a temperature of 500 °C and the activation energy for the…

A: Pyrolysis of ethane is done at 500∘C and activation energy is found to be 75000 cal/mol. Another…

Q: C3H6+ C6H6C9H12

A: The question involves the production of cumene (C9H12) from propylene (P) and benzene (B) in a…

Q: 1. On the following page, construct a graph of n', (moles hydrogen per gram of sample) vs. % Al. Use…

A:

Q: A project costs 50,000 and yields annual cash inflow of 10000 for 7 years. Calculate its  payback…

A: Project cost (initial investment) = 50000 Annual cash flow = 10000 Number of years = 7 Payback…

Q: Which one of the pipeline registers has no control signals: (a) EX/MEM (b) ID/EX (c) MEM/WB of the…

A: A pipeline register is a storage element in a pipelined processor that separates different stages of…

Q: Hydrogen gas is diffusing through an unglazed neoprene rubber with a wall thickness of 50 mm at 30°C…

A:

Q: 10.17 For SO₂ at 600 K and 300 bar, determine good estimates of the fugacity and of GR/RT.

A: Given, Temperature= 600K Pressure= 300 bar

Q: Water in the bottom of a narrow metal tube is held at a constant temperature of 293 K. The total…

A: Given  Temperature of water T = 293 K Total pressure P = 1.0132 × 105 Pa = 1 atm Length of the path…

Q: Crude dichlorobenzene is pumped from a storage tank to a distillation column. The tank is blanketec…

A: Given P1=Pressure in storage tank(Dichlorobenzene)=0.1barg P2= Pressure in distillation…

Q: 10 kg of Phenanthrene is to be burnt with supplied air which is 30% less than the requirement. Find…

A: given = 10 kg of Phenanthrene air is 30% less than the requirement.  To find = air which is 30% less…

Q: a unit step input i 2: For closed loop system, a controller eliminate the offset. 3: For…

A: a) Which controller eliminate tha offset or for which controller gives offset( steady state error) =…

Q: Use feedback control to control the bottom level using level control and the upper using pressure…

A: A feedback control system consists of five basic components: (1) input, (2) process being…

Q: Calculate the value of the Arrhenius pre-exponential factor and the activation energy for the…

A: The Arrhenius equation is logk = 9.8-1330T      ......1   The general Arrhenius equation is as…

Q: Ascorbic acid has a pKa value of 4.10. What is the value of Ka? VZ

A: pKa= - log10 Ka  Put the value pKa=4.10 4.10=-log Ka  Take the inverse function of the exponential…

Q: 9. Glycerin (SG = 1.26) and u = 1.49 Pa.s) flows through a rectangular conduit 300 mm by 450 mm at…

A: Given that- For glycerin Specific gravity, SG=1.26  Absolute viscosity, μ=1.49 Pa.s=1.49 kgm/s Width…

Q: What is the equilibrium constant expression for the following reaction? SO₂(aq) + 4H+ (aq) →Cu(s) +…

A: Given reaction SO2  +4H+  →Cu +2H2O  +SO42-

Q: Consider a system consisting of 1.5 mol CO.(g), initially at 15 °C and 9.0 atm and confined to a…

A: Given that n=1.5 molT=15 C=288.15 KP1 =9 atm =9 ×101325 =911925 PaP2=1.5 atm =151988 PaA=100 cm2Cv…

Q: Q3 Liquid octane (C8H18) at 25°C, 1 atm and a mass flow rate of 0.57 kg/h enters an internal…

A: The temperature of reactants, T1 = 25°C = 25+273 K = 298 K The temperature of the products, T2 = 670…

Q: Consider a heterogeneous gas-phase catalytic reaction: AB(g)→A(g)+B(g) (Catalyst) The surface…

A: Catalytic heterogeneous gas phase reaction is given, AB(g) + S ↔ka-1ka Ab*S…

Q: Ammonia gas (A) and nitrogen (B) are diffusing in counterdiffusion through a straight glass tube…

A: Ammonia (A) and Nitrogen (B) are diffusing in countercurrent manner through a glass tube. The glass…