11. Forty gal/min of a hydrocarbon fuel having a specific gravity of 0.91 flows into a tank truck with a load limit of 40,000 lb of fuel. How long will it take to fill the tank in the truck? 12. Pure chlorine enters a process. By measurement it is found that 2.4 kg of chlorine pass into the process every 3.1 minutes. Calculate the molar flow rate of the chlorine in kg mol/hr. 13. Commercial sulfuric acid is 98% H,SO, and 2% H>O, What is the mole ratio of H2S04 to H2O? 14. A compound contains 50% sulfur and 50% oxygen by mass. Is the empirical formula of the compound (1) SO, (2) SO2, (3) S03, or (4) SO4? 15. How many kg of activated carbon (a substance used in removing trace impurities) must be mixed with 38 kg of sand so that the final mixture is 28% activated carbon? 16. A gas mixture contains 40 lb of O2, 25 lb of SO2, and 30 lb of SO3. What is the composition of the mixture in mole fractions? 17. Saccharin, an artificial sweetener that is 3000 times sweeter than sucrose, is composed of 45.90% carbon, 2.73% hydrogen, 26.23% oxygen, 7.65% nitrogen, and 17.49% sulfur. Is the molecular formula of saccharin (a) C14H1006N2S2, (b) CSHO3NS, (c) CsH,O2NS, and (d) CH5O3NS? 18. A mixture of gases is analyzed and found to have the following composition: CO2 12.0%, CO 6.0%, CH4 27.3%, H2 9.9% and N2 44.8%. How much will 3 lb mol of this gas weigh?
11. Forty gal/min of a hydrocarbon fuel having a specific gravity of 0.91 flows into a tank truck with a load limit of 40,000 lb of fuel. How long will it take to fill the tank in the truck? 12. Pure chlorine enters a process. By measurement it is found that 2.4 kg of chlorine pass into the process every 3.1 minutes. Calculate the molar flow rate of the chlorine in kg mol/hr. 13. Commercial sulfuric acid is 98% H,SO, and 2% H>O, What is the mole ratio of H2S04 to H2O? 14. A compound contains 50% sulfur and 50% oxygen by mass. Is the empirical formula of the compound (1) SO, (2) SO2, (3) S03, or (4) SO4? 15. How many kg of activated carbon (a substance used in removing trace impurities) must be mixed with 38 kg of sand so that the final mixture is 28% activated carbon? 16. A gas mixture contains 40 lb of O2, 25 lb of SO2, and 30 lb of SO3. What is the composition of the mixture in mole fractions? 17. Saccharin, an artificial sweetener that is 3000 times sweeter than sucrose, is composed of 45.90% carbon, 2.73% hydrogen, 26.23% oxygen, 7.65% nitrogen, and 17.49% sulfur. Is the molecular formula of saccharin (a) C14H1006N2S2, (b) CSHO3NS, (c) CsH,O2NS, and (d) CH5O3NS? 18. A mixture of gases is analyzed and found to have the following composition: CO2 12.0%, CO 6.0%, CH4 27.3%, H2 9.9% and N2 44.8%. How much will 3 lb mol of this gas weigh?
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Transcribed Image Text:11. Forty gal/min of a hydrocarbon fuel having a specific gravity of 0.91 flows into a tank truck
with a load limit of 40,000 lb of fuel. How long will it take to fill the tank in the truck?
12. Pure chlorine enters a process. By measurement it is found that 2.4 kg of chlorine pass into
the process every 3.1 minutes. Calculate the molar flow rate of the chlorine in kg mol/hr.
13. Commercial sulfuric acid is 98% H,SO4 and 2% H>O, What is the mole ratio of H2S04 to
H2O?
14. A compound contains 50% sulfur and 50% oxygen by mass. Is the empirical formula of the
compound (1) SO, (2) SO2, (3) S03, or (4) SO4?
15. How many kg of activated carbon (a substance used in removing trace impurities) must be
mixed with 38 kg of sand so that the final mixture is 28% activated carbon?
16. A gas mixture contains 40 lb of O2, 25 lb of SO2, and 30 lb of SO3. What is the composition
of the mixture in mole fractions?
17. Saccharin, an artificial sweetener that is 3000 times sweeter than sucrose, is composed of
45.90% carbon, 2.73% hydrogen, 26.23% oxygen, 7.65% nitrogen, and 17.49% sulfur. Is
the molecular formula of saccharin (a) C14H1006N2S2, (b) C$H;O3NS, (c) C8H9O2NS, and
(d) CH5O3NS?
18. A mixture of gases is analyzed and found to have the following composition: CO2 12.0%,
CO 6.0%, CH4 27.3%, H2 9.9% and N2 44.8%. How much will 3 lb mol of this gas weigh?
19. A liquefied mixture of n-butane, n-pentane, and n-hexane has the following composition:
n-C4H10 50%, n-CSH12 30%, and n-C6H14 20%. For this mixture, calculate:
a) The weight fraction of each component.
b) The mole fraction of each component.
c) The mole percent of each component.
d) The average molecular weight of the mixture.
20. How many mg/L is equivalent to a 1.2% solution of a substance in water?
Answers:
1. (a) 7010 g; (b) 2.05 g mol; (c) 7010 lb; (d) 2.05 lb mol
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