EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
4th Edition
ISBN: 9781119192107
Author: BULLARD
Publisher: JOHN WILEY+SONS,INC.-CONSIGNMENT
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Textbook Question
Chapter 8, Problem 8.39P
In the manufacture of nitric acid, ammonia and preheated air arc mixed to form a gas containing 10.0 mole% NH3 at 600°C. The ammonia is then catalytically oxidized to form NO2, which is absorbed in water to form HNO3. If ammonia enters the gas blending unit at 25°C at a rate of 520 kg/h and heat is lost from the mixer to its surroundings at a rate of 7.00 kW. determine the temperature to which the air must be preheated. (See Example 8.3-6.)
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Problem 10.14 A hexagonal plane of side 30 mm has a corner in the V.P. The surface of the plane is
inclined at 45° to the V.P. and perpendicular to the H.P. Draw its projections. Assume that the diagonal
through the corner in the V.P. is parallel to the H.P.
d' a
2
b
b.f
C'
c.e
b
'C'
H.P.
(a)
V.P
E
HEX 30
e'
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d'
a
a'
b'
C'
b'
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y
a
b,f
c,e
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Problem 10.18 A 60° set-square has the shortest edge of 40 mm lying in the V.P. The surface is in-
clined to the V.P. and perpendicular to the H.P. such that the front view appears as an isosceles triangle.
Draw the projections of the set-square and determine its inclination with the V.P.
Construction Refer to Fig. 10.18.
A 60° set-square inclined to the V.P. and per-
pendicular to the H.P. can appear as an isosceles
triangle in the front view, when the shorter edge
is in the V.P.
1. First stage Draw a right angled triangle
40
a'
a'
b'
c' b'
X
40
C'
a,b
C a,b
a'b'c' keeping 40 mm long a'b' perpen-
dicular to xy. Project the corners to xy and
obtain ac as the top view.
2. Second stage Draw another right
angled triangle a'b'c' on the horizontal
locus line from points a', b' and c' of the
first stage such that length of b'c' is equal
to that of a'b'. Project a'b' to meet xy at
ab. Draw an arc with centre a and radius
equal to ac of the first stage to meet the
vertical projector of c' at…
Chapter 8 Solutions
EBK ELEMENTARY PRINCIPLES OF CHEMICAL P
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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- □ 40 a' 12 o' a O d'arrow_forwardTL = 85 D. Problem 9.12 The top view of a line measures 60 mm. The line is parallel to the V.P. and inclined at 45° to the H.P. One end of the line is 25 mm in front of the V.P. and lies on the H.P. Draw its projections and determine the true length. Interpretation Let the line be PQ parallel to the V.P. The front view has true length and the top view is parallel to xy. Construction Refer to Fig. 9.12. 1. Draw a reference line xy. Mark point p' on xy and point p 25 mm below xy. 2. Draw a 60 mm long line pq parallel to xy. This repre- sents the top view. 3. Draw line from point p', inclined at 45° to xy to meet the projector from point q at point q'. Join p'a' to represent the front view. Measure length of p'a' as true length of line PQ. Here T.L. = 85 mm. Result True length of line PQ is p'q' = 85 mm. 5 Fig. 9.12 p 60 σarrow_forwardProblem 9.13 A 70 mm long line PQ does not have H.T. and V.T. One end of the line is 30 mm in front of the V.P. and 20 mm above the H.P. Draw its projections. Interpretation As the line PQ does not have H.T. and V.T., it is parallel to both H.P. and V.P. Construction Refer to Fig. 9.13. 1. Draw a reference line xy. Mark point p' 20 mm above xy and point p 30 mm below xy. 2. Draw a 70 mm long line p'a' parallel to xy to repre- sent the front view. X 20 p Fig. 9.13 3. Also, draw a 70 mm long line pq parallel to xy to represent the top view. 70 q yarrow_forwardProblem 10.19 A square lamina ABCD of side 40 mm is suspended from a point O such that its surface is inclined at 30° to the V.P. The point O lies on the side AB 12 mm away from A. Draw its projections. Construction Refer to Fig. 10.19. 1. First stage Draw a square a'b'c'd keeping a'd' parallel to xy. Mark a point o' on a'ď at a distance 12 mm from end a' as the point of suspension. Also, mark the centre of the square g' to represent the centre of gravity. 2. 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The motion of the set point is in the direction of lower temperatures. If the current settings are PART 3 LINEAR CLOSED-LOOP SYSTEMS Ke = 2 psig/°F Ti = 1.25 min TD = 0.4 min plot the output pressure versus time.arrow_forward9.6. A PI controller has the transfer function Determine the values of K, and T. 5s + 10 Ge Sarrow_forward9.5. The input & to a PI controller is shown in Fig. P9-5. Plot the output of the controller if Ke 2 and 0.50 min. - E 0.5 0 -0.5 0 FIGURE P9-5 2 4 t, minarrow_forward9.3. An ideal PD controller has the transfer function P Ke (TDs + 1) E An actual PD controller had the transfer function P = Ke E TDS +1 (TDIẞ)s +1 where ẞis a large constant in an industrial controller. If a unit-step change in error is introduced into a controller having the second transfer function, show that P(1) = Kc (1 + Ae˜¯BD) where A is a function of ẞwhich you are to determine. For ẞ=5 and K = 0.5, plot P(t) versus tl tp. As ẞ, show that the unit-step response approaches that for the ideal controller.arrow_forward9.1. A pneumatic PI temperature controller has an output pressure of 10 psig when the set point and process temperature coincide. The set point is suddenly increased by 10°F (i.e., a step change in error is introduced), and the following data are obtained: Time, s psig 0- 10 0+ 8 20 7 60 90 5 3.5 Determine the actual gain (psig per degree Fahrenheit) and the integral time.arrow_forward2. A unit-step change in error is introduced into a PID controller. If Ke TD = 0.5, plot the response of the controller P(t). = =10, 1, andarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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