ELEM.PRIN.OF CHEMICAL PROC.-W/ACCESS
4th Edition
ISBN: 9781119330745
Author: FELDER
Publisher: WILEY
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Chapter 8, Problem 8.23P
Twenty liters of liquid n-propyl benzoate
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Propane is burned completely with excess oxygen. The product gas contains 24.5 mole% CO2, 6.10% CO, 40.8% H2O, and 28.6% O2.
(a) Calculate the percentage excess O2 fed to the furnace.
(b) A student wrote the stoichiometric equation of the combustion of propane to form CO2 and CO as:
2C3H8 + 11O2 → 3CO2 + 3CO + 8H2O
According to this equation, CO2 and CO should be in a ratio of 1/1 in the reaction products, but in the product gas of Part (a) they are in a ratio of 24.8/6.12. Is that result possible? (Hint: Yes.) Explain how
Enumerate the various methods for catalyst preparation and discuss vividly any one of the methods
2. Design a spherical tank, with a wall thickness of 2.5 cm that will ensure that no more than 45 kg of
hydrogen will be lost per year. The tank, which will operate at 500 °C, can be made from nickel,
aluminum, copper, or iron (BCC). The diffusion coefficient of hydrogen and the cost per pound for each
available material is listed in Table 1.
Material
Do (m2/s) Q (J/mol) Cost ($/kg)
Nickel
5.5 x 10-7
37.2
16.09
Aluminium
1.6 x 10-5
43.2
2.66
Copper
1.1 x 10-6
39.3
9.48
Iron (BCC)
1.2 × 10-7
15.1
0.45
Table 1: Diffusion data for hydrogen at 500 °C and the cost of material.
Chapter 8 Solutions
ELEM.PRIN.OF CHEMICAL PROC.-W/ACCESS
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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