A). Determine the critical length of duct Lmax where the flow becomes choked. Express your answer to three significant figures and include the appropriate units. B). Determine the Mach number at section 2. Express your answer using three significant figures. C). Determine the temperature at section 2. Express your answer using three significant figures. Use K as the unit for temperature. D). Determine the pressure at section 2. Express your answer to three significant figures and include the appropriate units.
A). Determine the critical length of duct Lmax where the flow becomes choked. Express your answer to three significant figures and include the appropriate units. B). Determine the Mach number at section 2. Express your answer using three significant figures. C). Determine the temperature at section 2. Express your answer using three significant figures. Use K as the unit for temperature. D). Determine the pressure at section 2. Express your answer to three significant figures and include the appropriate units.
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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Question
A). Determine the critical length of duct Lmax where the flow becomes choked. Express your answer to three significant figures and include the appropriate units.
B). Determine the Mach number at section 2. Express your answer using three significant figures.
C). Determine the temperature at section 2. Express your answer using three significant figures. Use K as the unit for temperature.
D). Determine the pressure at section 2. Express your answer to three significant figures and include the appropriate units.
Please use US Customary units for A and D. Thank you!
![Air in a large room has a temperature of 24° C and
absolute pressure of 101 kPa. It is drawn into the
200-mm-diameter duct isentropically such that the
absolute pressure at section 1 is 90 kPa. Duct has the
average friction factor of f = 0.002. Suppose that
L = 160 m. Gas constant for air is
R = 286.9 J/[kg · K] and its specific heat ratio is
k = 1.40. (Figure 1)
200 mm
2
L
Lmax](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd6dd7fe4-0145-479e-886b-6537235bde89%2Fa76755a4-7af1-4117-be4f-144dda64e8e8%2Fiqy1plr_processed.png&w=3840&q=75)
Transcribed Image Text:Air in a large room has a temperature of 24° C and
absolute pressure of 101 kPa. It is drawn into the
200-mm-diameter duct isentropically such that the
absolute pressure at section 1 is 90 kPa. Duct has the
average friction factor of f = 0.002. Suppose that
L = 160 m. Gas constant for air is
R = 286.9 J/[kg · K] and its specific heat ratio is
k = 1.40. (Figure 1)
200 mm
2
L
Lmax
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