ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
4th Edition
ISBN: 9781119249214
Author: FELDER
Publisher: INTER WILE
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Chapter 8, Problem 8.79P
Interpretation Introduction
(a)
Interpretation:
Derive the given relations.
Concept introduction:
The Raoult’s law expression is,
Where,
Interpretation Introduction
(b)
Interpretation:
Write a spread sheet calculation to fill the given table and explain the results
Concept introduction:
The Raoult’s law expression is,
Where,
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A 3.1 kg mass of saturated liquid-vapor mixture of water is contained within a closed system in a vertically
arranged piston-cylinder device at a pressure of P1. Initially, 1.1067 kg of the water is in the liquid phase and
the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of
stops, starts moving when the pressure inside reaches P2. Heat transfer continues until the total volume
increases by 19 percent.
Consider Case #7 from Table 1:
Table 1: Case # along with the list of pressures P, and P2
Case #
P1 (kPa)
P2 (kPa)
100
300
150
300
3
200
500
4
250
500
300
500
350
700
400
700
8.
450
700
(a) show the process on a P-v diagram in reference to the saturation lines,
(b) determine the initial and final temperatures,
(c) determine the mass of liquid water when the piston first starts moving, and
(d) determine the work done during this process.
A gas mixture at 300K and 1 bar analyzing by volume 20% N2 and 80% CH4 is subjected to liquefaction at the rate of 1500 kg/hr. It is found that only 30% (weight) of the entering gas is liquefied and the concentration of N2 in the liquid is 60% by weight. The unliquefied gas leaves the unit at 273K and 1 bar. Determine (a) the volume of the unliquefied gas, m3/hr (b) the composition of the gas leaving expressed as volume %.
A closed system consisting of 2 lb of a gas undergoes a process during which the relation between pressure and volume is pV" =
constant. The process begins with p₁= 15 lbf/in.2. v₁ = 1.25 ft3/lb and ends with p₂ = 60 lbf/in.2, v₂ = 0.5 ft3/lb. Determine (a) the
volume, in ft², occupied by the gas at states 1 and 2 and (b) the value of n.
Determine the volume, in ft, occupied by the gas at states 1 and 2.
V₁=
V₂ =
Determine the value of n.
n=
1
2
ft³
ft3
Chapter 8 Solutions
ELEMENTARY PRINCIPLES OF CHEM. PROCESS.
Ch. 8 - 8.1. The specific internal energy of formaldehyde...Ch. 8 - Prob. 8.2PCh. 8 - Prob. 8.3PCh. 8 - Prob. 8.4PCh. 8 - Prob. 8.5PCh. 8 - 8.6. Table B.7 of Appendix B gives the following...Ch. 8 - Prob. 8.7PCh. 8 - Two formulas for the heat capacity of CO are given...Ch. 8 - 8.9. Table B.2 lists values of the heat capacity...Ch. 8 - Prob. 8.10P
Ch. 8 - Chlorine gas is to be heated front 120°C and 1 atm...Ch. 8 - Prob. 8.12PCh. 8 - Prob. 8.13PCh. 8 - Prob. 8.14PCh. 8 - Use the enthalpy function of APEx to calculate...Ch. 8 - A stream of carbon monoxide flowing at 300 kg/min...Ch. 8 - Prob. 8.17PCh. 8 - Prob. 8.18PCh. 8 - Prob. 8.19PCh. 8 - Prob. 8.20PCh. 8 - Prob. 8.21PCh. 8 - Calculate the heat transfer (kJ) required to cool...Ch. 8 - Twenty liters of liquid n-propyl benzoate...Ch. 8 - Prob. 8.24PCh. 8 - Prob. 8.25PCh. 8 - Prob. 8.26PCh. 8 - A fuel gas containing 95 mole% methane and the...Ch. 8 - Prob. 8.28PCh. 8 - Prob. 8.29PCh. 8 - Ever wonder why espresso costs much more per cup...Ch. 8 - Prob. 8.31PCh. 8 - Saturated steam at 300°C is used to heat a...Ch. 8 - Pure ethane is burned completely with preheated...Ch. 8 - An adiabatic membrane separation unit is used to...Ch. 8 - A gas containing water vapor has a dry-basis...Ch. 8 - Prob. 8.36PCh. 8 - Prob. 8.37PCh. 8 - Prob. 8.38PCh. 8 - In the manufacture of nitric acid, ammonia and...Ch. 8 - A natural gas containing 95 mole% methane and the...Ch. 8 - The heat capacity at constant pressure of a gas is...Ch. 8 - Prob. 8.42PCh. 8 - Prob. 8.43PCh. 8 - Prob. 8.44PCh. 8 - Calculate the heat of vaporization of water...Ch. 8 - Polyvinylpyrrolidone (PVP) is a polymer product...Ch. 8 - Benzene vapor at 480°C is cooled and converted to...Ch. 8 - Prob. 8.48PCh. 8 - Prob. 8.49PCh. 8 - Prob. 8.50PCh. 8 - Prob. 8.51PCh. 8 - Prob. 8.52PCh. 8 - Prob. 8.53PCh. 8 - A stream of pure cyclopentane vapor flowing at a...Ch. 8 - Prob. 8.55PCh. 8 - Prob. 8.57PCh. 8 - A gas stream containing n-hexane in nitrogen with...Ch. 8 - A mixture of n-hexane vapor and air leaves a...Ch. 8 - An equimolar liquid mixture of n-pentane and...Ch. 8 - A liquid stream containing 50.0 mole% benzene and...Ch. 8 - Prob. 8.63PCh. 8 - Prob. 8.64PCh. 8 - Prob. 8.65PCh. 8 - Prob. 8.66PCh. 8 - An aqueous slurry at 30°C containing 20.0 wt%...Ch. 8 - Prob. 8.68PCh. 8 - Prob. 8.69PCh. 8 - A liquid is placed in a wcll-insulatcd container,...Ch. 8 - A small pharmaceutical firm plans to manufacture a...Ch. 8 - Freeze drying is a technique for dehydrating...Ch. 8 - The manufacturers of a new oatmeal product want to...Ch. 8 - Freeze concentration is used to produce a...Ch. 8 - A mixture containing 35.0 mole% n-butane and the...Ch. 8 - A liquid mixture of benzene and toluene containing...Ch. 8 - Prob. 8.79PCh. 8 - An outside-air sample is taken on a day when the...Ch. 8 - Prob. 8.83PCh. 8 - Prob. 8.84PCh. 8 - Prob. 8.85PCh. 8 - Wet solids pass through a continuous dryer. Hot...Ch. 8 - Prob. 8.88PCh. 8 - Prob. 8.93PCh. 8 - The heat of solution of ammonia in water at 1 atm...Ch. 8 - Prob. 8.96PCh. 8 - Sodium hydroxide is dissolved in enough water to...Ch. 8 - A sulfuric acid solution is labeled 8 N (where 1 N...Ch. 8 - You are about to dilute 2.00 mol of 100% sulfuric...Ch. 8 - Prob. 8.100PCh. 8 - A 0.1 mole% caustic soda (NaOH) solution is to be...Ch. 8 - Prob. 8.102PCh. 8 - Ortho-phosphoric acid (H3PO4) is produced as a...Ch. 8 - Prob. 8.104PCh. 8 - Fifty milliliters of 100% H2SO4 at 25°C and 84.2...Ch. 8 - Prob. 8.106PCh. 8 - One g-mole of pure liquid sulfuric acid at...Ch. 8 - Prob. 8.108PCh. 8 - Prob. 8.110PCh. 8 - Prob. 8.111PCh. 8 - Taking as references pure liquid sulfuric acid at...Ch. 8 - Prob. 8.113PCh. 8 - An NH3-H2O mixture containing 60wt% NH3 is brought...Ch. 8 - Prob. 8.115P
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