Elementary Principles of Chemical Processes 4e Binder Ready Version + WileyPLUS Registration Card (Wiley Plus Products)
4th Edition
ISBN: 9781119231240
Author: Richard M. Felder
Publisher: Wiley (WileyPLUS Products)
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 5, Problem 5.90P
A fuel cell is an electrochemical device that reacts hydrogen with oxygen from the air to produce water and DC electricity. A proposed application is replacement of the gasoline-fueled internal combustion engine in an automobile with a 100 kW fuel cell.
You are on a summer internship with a gas supplier planning to transport hydrogen to service stations for use in cars powered by fuel cells. The hydrogen is to be transported in tube trailers, each of which has 10 tubes of length 10.5 m and diameter 0.56 m. Hydrogen in the tubes at 2600 psig and an average temperature of 298 K is discharged at service stations to a ?nal pressure of 55 psig. Refueling each fuel-cell-powered automobile is estimated to require 4.0 kg of hydrogen.
(a) You and your of?ce-mate—an intern from a different university—have been asked to estimate the number of automobiles that can be refueled by one tube-trailer load of hydrogen. He does a very quick calculation and comes up with a value of 95 cars. Speculate how he did it and provide support for your speculation. What was his mistake?
(b) Do the calculation using the SRK equation of state. Instead of using Eqs. 5.3−11 and 5.3-13 for the parameter a, use the following correlation developed speci?cally for hydrogens:23
(c) Do the calculation using the law of corresponding states.
(d) In which of the three estimates would you have the greatest con?dence, and why?
Expert Solution & Answer
Trending nowThis is a popular solution!
Learn your wayIncludes step-by-step video
schedule05:22
Students have asked these similar questions
Hydrogen (H₂) is considered a clean energy carrier. For its use as a fuel, hydrogen is stored at 5 bar insidea cylindrical tank made of nickel (Ni) with 7 cm inner diameter, 1.2 mm thickness, and the length of L. Thetank is maintained at 358 K. Unfortunately, a small amount of hydrogen diffuses out of the tank, slowlydepleting its contents. You may assume that the hydrogen pressure outside the tank is essentially zero andconvective resistance inside and outside of the cylinder is negligible.• Solubility of H2 in Ni at 358 K = 0.00901 kmol/m3·bar• DH2, Ni at 358 K = 1.2 x 10-12 m2/sCalculate the maximum length of the nickel tank wall to ensure that the hydrogen loss does not exceed0.01 kg per year.
You just took out a cold soda can (at 1 oC) from the refrigerator. Calculate thetemperature of the soda can after the can is placed in a room (at 31 oC, h = 100 W/m2-K) for 60 mins (we all know that soda tastes much better when it is cold!). • k = 0.617 W/m-K, density = 996 kg/m3, Cp = 4178 J/Kg-K• Height = 10 cm & Diameter = 5 cmCalculate the temperature of the soda can surface at the middle point of the heightusing 2-D analysis.
A thick nickel wall is exposed to pure 5 bar H2(g) at 85 oC on one side of its surface (13 pts).(a) Assuming thermodynamic gas-solid equilibrium, calculate the H2 concentration at the surface ofthe nickel wall. (b) Assuming that the concentration of H2 at the surface is constant, determine the concentration ofH2 at the penetration depth in percentage of its concentration at the wall surface
Chapter 5 Solutions
Elementary Principles of Chemical Processes 4e Binder Ready Version + WileyPLUS Registration Card (Wiley Plus Products)
Ch. 5 - A liquid mixture containing 40.0 wt% n-octane and...Ch. 5 - Prob. 5.2PCh. 5 - Prob. 5.3PCh. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - Prob. 5.8PCh. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
Ch. 5 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Prob. 5.17PCh. 5 - Prob. 5.18PCh. 5 - Prob. 5.19PCh. 5 - A device has been designed to measure the flow...Ch. 5 - Prob. 5.21PCh. 5 - Prob. 5.22PCh. 5 - Spray drying is a process in which a liquid...Ch. 5 - Prob. 5.24PCh. 5 - Lewis12 describes the hazards of breathing air...Ch. 5 - A stream of air at 35°C and a gauge pressure of...Ch. 5 - Prob. 5.27PCh. 5 - In froth ?otation, air is bubbled through an...Ch. 5 - Prob. 5.29PCh. 5 - Prob. 5.30PCh. 5 - Bread is typically made by ?rst dissolving...Ch. 5 - Prob. 5.32PCh. 5 - Prob. 5.33PCh. 5 - Prob. 5.34PCh. 5 - Prob. 5.35PCh. 5 - Prob. 5.36PCh. 5 - Prob. 5.37PCh. 5 - Prob. 5.38PCh. 5 - Prob. 5.39PCh. 5 - A spray-drying operation similar to that described...Ch. 5 - Prob. 5.41PCh. 5 - Fermentation is a biochemical process in which a...Ch. 5 - Prob. 5.43PCh. 5 - Prob. 5.44PCh. 5 - Ethane at 25°C and 1.1 atm (abs) flowing at a rate...Ch. 5 - The ?ow of air to a gas-?red boiler furnace is...Ch. 5 - Prob. 5.47PCh. 5 - The oxidation of nitric oxide NO+12O2NO2 takes...Ch. 5 - Prob. 5.49PCh. 5 - 5.50.19 In chemical vapor deposition (CVD), a...Ch. 5 - A gas turbine power plant receives a shipment of...Ch. 5 - Prob. 5.52PCh. 5 - 5.53.20 Chemicals are stored in a laboratory with...Ch. 5 - Prob. 5.54PCh. 5 - Prob. 5.55PCh. 5 - A stream of ho dry nitrogen flows through a...Ch. 5 - Prob. 5.57PCh. 5 - You have purchased a gas cylinder that is supposed...Ch. 5 - The current global reliance on fossil fuels for...Ch. 5 - Two humid gas streams are combined in a heated...Ch. 5 - Most of the concrete used in the construction of...Ch. 5 - The ultimate analysis of a No. 4 fuel oil is 86.47...Ch. 5 - A stream of liquid n-pentane flows at a rate of...Ch. 5 - Alka-Seltzer( is an over-the-counter medicine used...Ch. 5 - Hydrogen sul?de has the distinctive unpleasant...Ch. 5 - The quantity of sulfuric acid used globally places...Ch. 5 - A small power plant produces 500 MW of electricity...Ch. 5 - You have been assigned the task of measuring the...Ch. 5 - Prob. 5.69PCh. 5 - Methanol is synthesized from carbon monoxide and...Ch. 5 - Prob. 5.71PCh. 5 - Prob. 5.72PCh. 5 - Steam reforming is an important technology for...Ch. 5 - A ?owchart of a methanol synthesis process is...Ch. 5 - The measured volumetric flow rate of ethane at...Ch. 5 - Prob. 5.76PCh. 5 - Methanol is to be delivered to a process unit at a...Ch. 5 - Prob. 5.78PCh. 5 - Prob. 5.79PCh. 5 - Prob. 5.80PCh. 5 - Prob. 5.81PCh. 5 - Prob. 5.82PCh. 5 - Prob. 5.83PCh. 5 - Prob. 5.84PCh. 5 - Prob. 5.85PCh. 5 - Prob. 5.86PCh. 5 - Prob. 5.87PCh. 5 - Prob. 5.88PCh. 5 - Prob. 5.89PCh. 5 - A fuel cell is an electrochemical device that...Ch. 5 - In a metered-dose inhaler (MDI), such as those...Ch. 5 - Prob. 5.92PCh. 5 - Prob. 5.93PCh. 5 - Approximately 150 SCFM (standard cubic feet per...Ch. 5 - Prob. 5.95PCh. 5 - Prob. 5.96PCh. 5 - Prob. 5.97PCh. 5 - The product gas from a coal gasification plant...Ch. 5 - Prob. 5.99PCh. 5 - Prob. 5.100PCh. 5 - A gas mixture consisting of 15.0 mole% methane....Ch. 5 - A system has been devised to store acetonitrile...Ch. 5 - Prob. 5.103PCh. 5 - Prob. 5.104P
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Write a summary list of the problem-solving steps identified in the chapter, using your own words.
BASIC BIOMECHANICS
What output will the following lines of code display on the screen? cout "The works of Wolfgang\ninclude the f...
Starting Out with C++: Early Objects (9th Edition)
Look at the following description of a problem domain:
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Why is the study of database technology important?
Database Concepts (8th Edition)
In Exercises 1 through 22, determine the output displayed in the text box or list box by the lines of code.
Introduction To Programming Using Visual Basic (11th Edition)
1.2 Explain the difference between geodetic and plane
surveys,
Elementary Surveying: An Introduction To Geomatics (15th Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Can you provide me the answer of these pleasearrow_forwardA constant-volume process involving 2.0 moles of diatomic ideal gas, for which cV = (5/2)R, is at an initial state of 111 kPa and 277 K and is then heated reversibly to 356 K. Calculate the P2 (kPa), dU (kJ), heat transfer q (kJ mol–1), and w (kJ mol–1).arrow_forwardProblem 1 Marks: 60 Section: 1a): 30 marks, Section 1b):30 marks A laboratory scale fluidized bed is considered for studying a catalytic ozone decomposition. a) It is requested to derive model equations under the following assumptions: ■ Operation of the catalytic reactor under steady state conditions, There is no influence of thermal ozone decomposition reactions. The fluidized bed includes bubbles and dense phase. □ The dense phase can be simulated using a CSTR The fluidized bed bubbles contain catalyst particles and can be simulated as a DSTR (batch). □ The jets contain particles and can be simulated with a PFR. The influence of the freeboard has to be considered using a PFR model. The available catalytic reaction rate model is r (moles/gcat.s)= -k CA b) Same than on a) under unsteady state conditions, using an absorbable and reactive tracer. Note: A step-by step derivation of the model equations is required here. A quick answer will not do. Problem 2 Marks: 40 Section 2a: 30 marks,…arrow_forward
- Penicillin process Penicillium chrysogenum is used to produce penicillin in a 90,000-litre fermenter. The volumetric rate of oxygen uptake by the cells ranges from 0.45 to 0.85 mmol l^−1 min^−1 depending on time during the culture. Power input by stirring is 2.9 W l^−1. Estimate the cooling requirements.arrow_forwardProduction of bakers’ yeast Bakers’ yeast is produced in a 50,000-litre fermenter under aerobic conditions. The carbon substrate is sucrose; ammonia is provided as the nitrogen source. The average biomass composition is CH_1.83O_0.55N_0.17 with 5% ash. Under conditions supporting efficient growth, biomass is the only major product and the biomass yield from sucrose is 0.5 g g^−1. If the specific growth rate is 0.45 h^−1, estimate the rate of heat removal required to maintain constant temperature in the fermenter when the yeast concentration is 10 g l^−1.arrow_forwardSensible energy change Calculate the enthalpy change associated with the following processes:(a) m-Cresol is heated from 25°C to 100°C(b) Ethylene glycol is cooled from 20°C to 10°C(c) Succinic acid is heated from 15°C to 120°C(d) Air is cooled from 150°C to 65°Carrow_forward
- ▼ Enzyme conversion An immobilised enzyme process is used in an ice-cream factory to hydrolyse lactose (C12H22O11) to glucose (C6H12O6) and galactose (C6H1206): C12H22O11 + H2O →→ C6H12O + C6H12O6 Gel beads containing ß-galactosidase are packed into a column reactor; 2500 kg of lactose enters the reactor per day as a 10% solution in water at 25°C. The reactor operates at steady state and 32°C; all of the lactose is converted. Because the heat of reaction for enzyme conversions is not as great as for cell culture, sensible heat changes and heats of mixing cannot be ignored. Lactose Water Ah (kJ gmol¹) C, (cal g¹ ºC-¹) Ahm (kcal gmol¹) 3.7 -5652.5 0.30 1.0 Glucose -2805.0 0.30 5.6 Galactose -2805.7 0.30 5.6 (a) What is the standard heat of reaction for this enzyme conversion? (b) Estimate the heating or cooling requirements for this process. State explicitly whether heating or cooling is needed.arrow_forwardBacterial production of alginate Azotobacter vinelandii is investigated for production of alginate from sucrose. In a continuous fermenter at 28°C with ammonia as nitrogen source, the yield of alginate was found to be 4 g g^−1 oxygen consumed. It is planned to produce alginate at a rate of 5 kg h^−1. Since the viscosity of alginate in aqueous solution is considerable, energy input due to mixing the broth cannot be neglected. The fermenter is equipped with a flat-blade disc turbine; at a satisfactory mixing speed and air flow rate, the power requirements are estimated at 1.5 kW. Calculate the cooling requirements.arrow_forwardPreheating nutrient medium Steam is used to heat nutrient medium in a continuous-flow process. Saturated steam at 150°C enters a coil on the outside of the heating vessel and is completely condensed. Liquid medium enters the vessel at 15°C and leaves at 44°C. Heat losses from the jacket to the surroundings are estimated as 0.22 kW. If the flow rate of medium is 3250 kg h^−1 and its heat capacity is 0.9 cal g^−1 °C^−1, how much steam is required?arrow_forward
- Q3] Determine the optimal operating conditions (XA, t, and CR) in a mixed flow reactor to maximize the concentration of R (CR) in the effluent, where an aqueous feed A with an initial concentration of CA0-40 mol/m³ enters the reactor, undergoes decomposition, and exits as a mixture containing A, R, and S. K₁ AR, FR = k₁C, k₁ = 0.4 m³/(mol min) SA AS, rs = k₂CA, k₂ = 2(min), CA0 = 40 mol/m³arrow_forwardConsider the parallel decomposition of A of different orders with FR = 1, rs = 2CA and IT = C. Determine the maximum concentration of desired product obtainable in mixed flow reactor and plug flow reactor. (1) R is desired product and CA0 = 2. (2) S is desired product and CA0 = 4. R S Tarrow_forward1. Copper is known to be toxic to fish, and in particular, the free ion Cu²+ species typically shows greatest toxicity. a. Calculate the speciation of Cu(II) for freshwater at a pH value of 8.3 as the hardness increases from 20 (soft) to 100 (moderately hard) to 200 (very hard) mg/L as CaCO3. Assume that the total divalent Cu(II) concentration is 10 µg/L. b. Based on your findings in part (a), do you think it is appropriate to set a single regulatory limit or should it depend on variables such as pH and hardness? Explain your answer.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Introduction to Chemical Engineering Thermodynami...Chemical EngineeringISBN:9781259696527Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark SwihartPublisher:McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind...Chemical EngineeringISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Elements of Chemical Reaction Engineering (5th Ed...Chemical EngineeringISBN:9780133887518Author:H. Scott FoglerPublisher:Prentice Hall
Industrial Plastics: Theory and ApplicationsChemical EngineeringISBN:9781285061238Author:Lokensgard, ErikPublisher:Delmar Cengage Learning
Unit Operations of Chemical EngineeringChemical EngineeringISBN:9780072848236Author:Warren McCabe, Julian C. Smith, Peter HarriottPublisher:McGraw-Hill Companies, The
Introduction to Chemical Engineering Thermodynami...
Chemical Engineering
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:McGraw-Hill Education
Elementary Principles of Chemical Processes, Bind...
Chemical Engineering
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY
Elements of Chemical Reaction Engineering (5th Ed...
Chemical Engineering
ISBN:9780133887518
Author:H. Scott Fogler
Publisher:Prentice Hall
Industrial Plastics: Theory and Applications
Chemical Engineering
ISBN:9781285061238
Author:Lokensgard, Erik
Publisher:Delmar Cengage Learning
Unit Operations of Chemical Engineering
Chemical Engineering
ISBN:9780072848236
Author:Warren McCabe, Julian C. Smith, Peter Harriott
Publisher:McGraw-Hill Companies, The