Solutions for ELEM PRIN OF CHEMICAL PROC(LL)+NEXTGEN
Problem 8.1P:
8.1. The specific internal energy of formaldehyde (HCHO) vapor at 1 atm and moderate temperatures is...Problem 8.6P:
8.6. Table B.7 of Appendix B gives the following values for steam at 400°C and 150 bar: H= 2975...Problem 8.8P:
Two formulas for the heat capacity of CO are given here: Cp[cal/(molC)]=6.890+0.001436T(C)...Problem 8.9P:
8.9. Table B.2 lists values of the heat capacity of liquid ethanol at two temperatures. Use the...Problem 8.11P:
Chlorine gas is to be heated front 120°C and 1 atm to 180°C. Calculate the heat input (kW) required...Problem 8.15P:
Use the enthalpy function of APEx to calculate Hfor each of the processes given below and check your...Problem 8.16P:
A stream of carbon monoxide flowing at 300 kg/min is cooled from 450°C to 50°C at a low pressure....Problem 8.22P:
Calculate the heat transfer (kJ) required to cool 55.0 liters of a liquid mixture containing 70.0...Problem 8.23P:
Twenty liters of liquid n-propyl benzoate (C6H5CO2C3H7,SG=1.021)and 15 liters of liquid benzene are...Problem 8.27P:
A fuel gas containing 95 mole% methane and the balance ethane is burned completely with 25% excess...Problem 8.30P:
Ever wonder why espresso costs much more per cup than regular drip coffee? Part of the reason is the...Problem 8.32P:
Saturated steam at 300°C is used to heat a countercurrently flowing stream of methanol vapor from...Problem 8.33P:
Pure ethane is burned completely with preheated 20% excess air. The combustion product gas passes...Problem 8.34P:
An adiabatic membrane separation unit is used to dry (remove water vapor from) a gas mixture...Problem 8.35P:
A gas containing water vapor has a dry-basis composition of 7.5 mole% CO, 11.5% CO2, 0.5% O2, and...Problem 8.39P:
In the manufacture of nitric acid, ammonia and preheated air arc mixed to form a gas containing 10.0...Problem 8.40P:
A natural gas containing 95 mole% methane and the balance ethane is burned with 20.0% excess air....Problem 8.41P:
The heat capacity at constant pressure of a gas is determined experimentally at several...Problem 8.45P:
Calculate the heat of vaporization of water (kJ/mol) at 50°C and low pressures from the tabulated...Problem 8.46P:
Polyvinylpyrrolidone (PVP) is a polymer product used as a binding agent in pharmaceutical...Problem 8.47P:
Benzene vapor at 480°C is cooled and converted to a liquid at 25°C in a continuous condenser. The...Problem 8.54P:
A stream of pure cyclopentane vapor flowing at a rate of 1550 L/s at 150°C and 1 atm enters a cooler...Problem 8.58P:
A gas stream containing n-hexane in nitrogen with a relative saturation of 909? is fed to a...Problem 8.60P:
A mixture of n-hexane vapor and air leaves a solvent recovery unit and flows through a 70-cm...Problem 8.61P:
An equimolar liquid mixture of n-pentane and n-hexane at 80°C and 5.00 atm is fed into a flash...Problem 8.62P:
A liquid stream containing 50.0 mole% benzene and the balance toluene at 25°C is fed to a continuous...Problem 8.67P:
An aqueous slurry at 30°C containing 20.0 wt% solids is fed to an evaporator in which enough w ater...Problem 8.71P:
A liquid is placed in a wcll-insulatcd container, which is then scaled. Initially, the container and...Problem 8.72P:
A small pharmaceutical firm plans to manufacture a new drug and has hired you as a consultant to...Problem 8.73P:
Freeze drying is a technique for dehydrating substances at low temperatures, thereby avoiding the...Problem 8.74P:
The manufacturers of a new oatmeal product want to determine the least expensive way to safeguard...Problem 8.75P:
Freeze concentration is used to produce a fruit-juice concentrate. A stream of fresh juice...Problem 8.76P:
A mixture containing 35.0 mole% n-butane and the balance isobutane at 10°C enters a heat exchanger...Problem 8.78P:
A liquid mixture of benzene and toluene containing 50.0 wt% benzene at 100°C and pressure Pois fed...Problem 8.82P:
An outside-air sample is taken on a day when the temperature is 78°F and the relative humidity is...Problem 8.86P:
Wet solids pass through a continuous dryer. Hot dry air enters the dryer at a rate of 400 kg/min and...Problem 8.95P:
The heat of solution of ammonia in water at 1 atm is Hs(25C,r=2molH2O/molNH3)=78.2kJ/mol Calculate...Problem 8.97P:
Sodium hydroxide is dissolved in enough water to make up a 20.0 mole% solution. If the NaOH and...Problem 8.98P:
A sulfuric acid solution is labeled 8 N (where 1 N = 1 g-equivalent/L, and 1 mol of H2SO4 contains...Problem 8.99P:
You are about to dilute 2.00 mol of 100% sulfuric acid with enough water to produce a 30 mole%...Problem 8.101P:
A 0.1 mole% caustic soda (NaOH) solution is to be concentrated in a continuous evaporator. The...Problem 8.103P:
Ortho-phosphoric acid (H3PO4) is produced as a dilute aqueous solution that must be concentrated...Problem 8.105P:
Fifty milliliters of 100% H2SO4 at 25°C and 84.2 mL of liquid water at 15°C are mixed. The heat...Problem 8.107P:
One g-mole of pure liquid sulfuric acid at temperature T0(°C) is mixed with r g-moles of liquid...Problem 8.112P:
Taking as references pure liquid sulfuric acid at 77°F and pure liquid water at 32°F and without...Browse All Chapters of This Textbook
Chapter 2 - Introduction To Engineering CalculationsChapter 3 - Processes And Process VarialesChapter 4 - Fundamentals Of Material BalancesChapter 5 - Single-phase SystemsChapter 6 - Multiphase SystemsChapter 7 - Energy And Energy BalancesChapter 8 - Balances On Nonreactive ProcessesChapter 9 - Balances On Reactive ProcessesChapter 10 - Balances On Transient Processes
Sample Solutions for this Textbook
We offer sample solutions for ELEM PRIN OF CHEMICAL PROC(LL)+NEXTGEN homework problems. See examples below:
In one week there are seven days and in one day there are twenty-four hours. In one hour there are...Chapter 3, Problem 3.1PGiven: The volume of tank is 2.0m3 and the tank is initially half filled. Water enters at a rate of...Chapter 5, Problem 5.1PChapter 6, Problem 6.1PChapter 7, Problem 7.1PChapter 8, Problem 8.1PChapter 9, Problem 9.1PChapter 10, Problem 10.1P
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