Introduction to Chemical Engineering Th...8th EditionJ.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart Publisher: McGraw-Hill EducationISBN: 9781259696527
Introduction to Chemical Engineering Th...
Solutions for Introduction to Chemical Engineering Thermodynamics
Problem 13.2P:
Assuming Raoult’s law to be valid, prepare a Pxy diagram for a temperature of 90°C and a txy diagram...Problem 13.3P:
Assuming Raoult’s law to apply to the system n-pentane(1)/n-heptane(2). What are the values of x1and...Problem 13.5P:
Prove: An equilibrium liquid/vapor system described by Raoult’s law cannot exhibit an azeotrope.Problem 13.6P:
Of the following binary liquid/vapor systems, which can be approximately modeled by Raoult's law?...Problem 13.7P:
A single-stage liquid/vapor separation for the benzene(l)/ethylbenzene(2) system must produce phases...Problem 13.8P:
Do all four parts of Prob. 13.7, and compare the results. The required temperatures and pressures...Problem 13.9P:
A mixture containing equimolar amounts of benzene(1), toluene(2), and ethylben- zene(3) is flashed...Problem 13.10P:
Do all four parts of Prob. 13.9. and compare the results. Discuss any trends that appear. 13.9. A...Problem 13.11P:
A binary mixture of mole fraction z1is flashed to conditions T and P. For one of the following,...Problem 13.12P:
Humidity, relating to the quantity of moisture in atmospheric air, is accurately given by equations...Problem 13.13P:
A concentrated binary solution containing mostly species 2 (but x21 ) is in equilibrium with a vapor...Problem 13.14P:
Air, even more than carbon dioxide, is inexpensive and nontoxic. Why is it not the gas of choice for...Problem 13.15P:
Helium-laced gases are used as breathing media for deep-sea divers. Why? Table 13.2 may provide...Problem 13.16P:
A binary system of species 1 and 2 consists of vapor and liquid phases in equilibrium at temperature...Problem 13.17P:
For the system ethyl ethanoate(l)/n-heptane(2) at 343.15 K, ln 1=0.95x22; In 1=0.95x12 ;...Problem 13.18P:
A liquid mixture of cyclohexanone(1)/phenol(2) for which x1= 0.6 is in equilibrium with its vapor at...Problem 13.19P:
A binary system of species 1 and 2 consists of vapor and liquid phases in equilibrium at temperature...Problem 13.20P:
For the acetone(l)/methanol(2) system, a vapor mixture for which z1= 0.25 and z2= 0.75 is cooled to...Problem 13.21P:
The following is a rule of thumb: For a binary system in VLE at low pressure, the equilibrium...Problem 13.22P:
A process stream contains light species 1 and heavy species 2. A relatively pure liquid stream...Problem 13.23P:
If a system exhibits VLE, at least one of the K-values must be greater than 1.0 and at least one...Problem 13.24P:
Flash calculations are simpler for binary systems than for the general multicomponent case because...Problem 13.26P:
(a) A feed containing equimolar amounts of acetone(1) and acetonitrile(2) is throttled to pressure P...Problem 13.27P:
A binary mixture of benzene(1) and toluene(2) is flashed to 75 kPa and 90°C. Analysis of the...Problem 13.28P:
Ten (10) kmolhr-1 of hydrogen sulfide gas is burned with the stoichiometric amount of pure oxygen in...Problem 13.29P:
Physiological studies show the neutral comfort level (NCL) of moist air corresponds to an absolute...Problem 13.35P:
The excess Gibbs energy for binary systems consisting of liquids not too dissimilar in chemical...Problem 13.36P:
For the ethanol(l )/chloroform(2) system at 50°C, the activity coefficients show interior extrema...Problem 13.37P:
VLE data for methyl tert-butyl ether(1)/dichloromethane(2) at 308.15 K are as follows: Extracted...Problem 13.40P:
Following are VLE data for the system acetonitrile(1)/benzene(2) at 45°C The data are well...Problem 13.43P:
Problems 13.43 through 13.54 require parameter values for the Wilson or NRTL equation for...Problem 13.44P:
Problems 13.43 through 13.54 require parameter values for the Wilson or NRTL equation for...Problem 13.46P:
Problems 13.43 through 13.54 require parameter values for the Wilson or NRTL equation for...Problem 13.51P:
Problems 13.43 through 13.54 require parameter values for the Wilson or NRTL equation for...Problem 13.55P:
The following expressions have been reported for the activity coefficients of species 1 and 2 in a...Problem 13.56P:
Possible correlating equations for In 1 in a binary liquid system are given here. For one of these...Problem 13.58P:
Binary VLE data are commonly measured at constant T or at constant P. Isothermal data are much...Problem 13.59P:
Consider the following model for GE/RT of a binary mixture: GEx1x2RT=x1A21k+x2A12k1/k This equation...Problem 13.60P:
A breathalyzer measures volume-% ethanol in gases exhaled from the lungs. Calibration relates it to...Problem 13.61P:
Table 13.10 gives values of parameters for the Wilson equation for the acetone(l)/ methanol(2)...Problem 13.63P:
A single P-x1- y1data point is available for a binary system at 25°C. Estimate from the data: The...Problem 13.64P:
A single P- x1, data point is available for a binary system at 35°C. Estimate from the data: The...Problem 13.65P:
The excess Gibbs energy for the system chloroform(1)/ethanol(2) at 55°C is well represented by the...Problem 13.67P:
A system formed of methane(l) and a light oil(2) at 200 K and 30 bar consists of a vapor phase...Problem 13.68P:
Use Eq. (13.13) to reduce one of the following isothermal data sets, and compare the result with...Problem 13.69P:
For one of the following substances, determine Psat/bar from the Redlich/Kwong equation at two...Problem 13.71P:
Departures from Raoult's law are primarily from liquid-phase nonidealities ( i1 ). But vapor-phase...Browse All Chapters of This Textbook
Chapter 1 - IntroductionChapter 2 - The First Law And Other Basic ConceptsChapter 3 - Volumetric Properties Of Pure FluidsChapter 4 - Heat EffectsChapter 5 - The Second Of Law Of ThermodynamicsChapter 6 - Thermodynamic Properties Of FluidsChapter 7 - Applcations Of Thermodynamics To Flow ProcessesChapter 8 - Production Of Power From HeatChapter 9 - Refrigeration And LiquefactionChapter 10 - The Framework Of Solution Thermodynamics
Sample Solutions for this Textbook
We offer sample solutions for Introduction to Chemical Engineering Thermodynamics homework problems. See examples below:
Given Information: The given quantity is Electric Power. Electric power is defined as the rate at...Given information: Antoine equation can be expressed in following two forms-...Given: Laboratory Data for the particular organic chemical. T (C) T (K) Psat -18.5 254.65 3.18 -9.5...Given information: Total mass, Mwt=35 kg Acceleration due to gravity, g=9.8 ms-2 Height, Δz=5 m...Given Data: ΔUt12=−200W12=−6000Q23=−3800Q34=−800 W34=300ΔUt41=4700W12341=−1400 This is a simple...Single-pipe heat exchanger: Assumptions: 1. Single stream is flowing within the pipe. 2. Neglect the...Diameter of the pipe is, D=2 cm Velocity, u=1 m/s Calculate, Re=Duρμ Substitute D=2 cm=2x10−2 mu=1...Given information: It is given that water is flowing with conditions steady state flows,...Given: Components =2 (Ethanol, Water) Phases = (Liquid, Vapor) Calculation: A sealed flask...
Given information: It is given that CP=52R, CV=32R is changed from P1=PA=1 bar, V1=VA=12 m3 to P2=12...Given Information: The virial equation is given as Z=PVRT=1+BV+CV2 gas constant R in CGS unit is...Given Information: The virial equation is given as Z=PVRT=1+BV+CV2 gas constant R in CGS unit is...Given Information: The virial equation is given as Z=PVRT=1+BV+CV2 gas constant R in CGS unit is...Given Information: The virial equation is given as Z=PVRT=1+BV+CV2 gas constant R in CGS unit is...Given Information: The virial equation is given as Z=PVRT=1+BV+CV2 gas constant R in CGS unit is...Given Information: The virial equation is given as Z=PVRT=1+BV+CV2 gas constant R in CGS unit is...The volumetric delivery rate in actual cubic feet per day. At actual conditions, T=50oF...Given information: The general expressions for ψ, Ω and ZC are: ψ=aPCR2TC2 Ω=bPCRTC And ZC=PCVCRTC...Given information: T1=2000C⇒T1=2000C+273.15=473.15 K T2= 11000C⇒T2= 11000C+273.15=1373.15 K n=10mol...Given information: Q= 12 kJ/mol initial temperature(T1) =1000C. So, T0=1000C⇒T0=1000C+273.15=373.15...Given information: T0=25oC=25+273.15 K=298.15 K T=?oC=T+273.15 K The standard enthalpies of...Given information: The reaction is given as: N2(g)+3H2g→2NH3(g) The standard enthalpies of formation...N2 + 3H2 ? 2 NH3 Basis of Number of Moles of N2 = 1 Number of Moles of NH3 = 2 Number of Moles of H2...Given information: It is given that two adiabatic reversible processes do intersect and complete the...Given information: It is given that n=10 mol of SO2 T0=200∘C +273.15=473.15 K T=1100∘C...Given information: When 800 kJ is added to 10 mol of ethylene initially at 200∘C...Given information: It is given that Hilsch vortex tube operates with no mechanical parts splits air...Given information: It is given that air at70∘F and 1 atm is cooled at the rate of100000 ft3hr to20∘F...Given information: The process is given as a flue gas is cooled from1100∘C to150∘C , heat is used to...Given information: It is given that the fundamental equation dH=TdS+VdP is applicable. Differentiate...Given information: It is given that at initial state P1=3000 kPa, T1=450∘C+273.15=723.15 K And at...Given information: It is given that pressure is P=1000 kPa and steam is saturated. From steam tables...Given information: It is given that pressure is P=150 psia and steam is saturated. From steam tables...Given information: It is given that in the initial state, propane is assumed as an ideal gas. And at...Given information: It is given that enthalpy and entropy are set equal to zero for the ideal gas...Given information: It is given that propylene is at 38 bar and 400.15 K andis throttled in a steady...Given information: It is given that propane is at 22 bar and 423 K and is throttled in a steady...Given information: It is given that ethane expands isentropically from 30 bar and 493.15 Kto 2.6 bar...Given information: It is given that n-butane gas compressed isentropically from 1 bar and 323.15 K...Given Information: Initial velocity of air = negligible ₹ 0 ms-1 Final velocity of air = 325 ms-1...(∂x∂y)z=(∂x∂y)w+(∂x∂w)y(∂w∂y)z (∂Z∂T)p=(∂Z∂T)ρ+(∂Z∂p)T(∂ρ∂T)P We get,(∂Z∂T)ρ=(∂Z∂T)P−(∂Z∂ρ)p(∂ρ∂T)P...Given Information: An expander operates adiabatically with nitrogen. Following conditions are given:...Tr0=T0Tc Tr0=0.725 Pr=PPc Pr0=0.01773 Pr0=P0Pc Pr=0.0886 Use generalized second-virial correlation:...Tr0=T0Tc Tr0=0.8292 Pr=PPc Pr0=0.2465 Pr0=P0Pc Pr=0.386 Use generalized second-virial correlation:...Tr1=T1Tc Tr1=1.328 Tr1=P1Pc Tr1=0.357 Pr2=P2Pc Pr2=0.024 For throttling process, ΔH=0. assuming to...Given information: The basic cycle for a steam power plant is shown by Fig. 8.1. Suppose the turbine...Given information: It is given thatcycle is a regenerative cycle in a steam power plant includes one...Given Information: Measure of performance is defined as what you get compared to what you pay for....Given information: The refrigerant is tetrafluoroethene. Evaporation T=0∘C Condensation T=26∘C...Given information: In a refrigerator, tetrafluoroethene acts as a refrigerant and operates with an...Given Information: Initial volumes of the gases are: CO2=0.7m3N2=0.3m3 Final Volume...Refer APPENDIX-B and Table-B.1 to determine critical properties and acentric factor of...Refer APPENDIX-B and Table-B.1 to determine critical properties and acentric factor of...We know that the mole fraction of the second component in a mixture can be written as x2=1−x1 Which...Composition for binary mixture of gases (Given): Y1 = 0.28 and Y2 = 0.72 Temperature (given) = 600C...Given Information: At 250C and atmospheric pressure the volume change of mixing of binary liquid...Given Information: ΔH= x1+x2(A21x1+A12x2) ΔH for particular solute (1)/solute (2) is represented by...Given information: Given equations to be shown are: M¯1E=x22(X+x1 dX d x 1 )M¯2E=x12(X−x2 dX d x 1 )...Given information: At 25∘C, a 90 wt% H2SO4 solution is being added to a tank containing 4000 kg of...Given: A closed vessel of fixed volume having equal masses of water, ethanol, and toluene at 70 °C....Given information: 1 mol of pure tetrahydrofuran at 50∘C and 52 kPa is present in a closed vessel....Given information: Excess Gibbs energy for a binary liquid mixture is given by GERT=2.6x1x2 Overall...Given information: Excess Gibbs energy for a binary liquid mixture is given by, GERT=2.1x1x2(x1+2x2)...The Raoult’s law expression for two components A and B to give the equilibrium partial pressure of...Find the value of x1 and y1at T=65°Cand P=12(P1v+P2v) The Raoult’s law expression for two components...Given information: The set of VLE data for the binary system containing methanol(1)/water(2) at...Given information: The set of VLE data for the binary system containing methanol (1)/water (2) at...Given information: The temperature at which the bubble point pressure is to be calculated is 60∘C ....Given information: The temperature at which the bubble point pressure is to be calculated is 60∘C ....Given information: The pressure at which the bubble point temperature is to be calculated is 101.33...Given information: The pressure at which the bubble point temperature is to be calculated is 101.33...4NH3(g)+5O2(g)→4NO(g)+6H2O(g) vi = Moles of products − Moles of reactants v=vi=4+6−4−5=1...Given information: The cracking reaction of propane is: C3H8(g)→C2H4(g)+CH4(g) The equilibrium...From Table C.4 the standard heat of reaction and Gibbs free energy for methanol formation is:...Given information: By the reaction of steam with “water gas”, hydrogen gas is produced. The reaction...Given information: The reaction for the production of “synthesis gas” by catalytic re-forming of...The definition of Gibbs Energy is given as, GE=ΔG−RT∑ixilnxi For the upper bound case, ?G = 0...x1α=0.1x2α=1−x1α=0.9x1β=0.9x2β=1−x1β=0.1 Now let’s guess: A12 = 2 and A21 = 2...A=975T−18.4+3lnT Using the above equation and varying T, Now, Plot A v/s T, we get, T A T A T A T A...Given information: It is given that the operating conditions are T=80∘C+273.15=353.15 K and P=300...At initial stage, Hi=88.5043 kJkgSi=0.31216 kJkg-K At final stage, Hf=−333.5kJkgSf=1.22 kJkg-K The...
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