A gas consists of 20.0 mole% CH4, 30.0% C2H6, and 50.0% C2H4. Ten kilograms of this gas is to be compressed to a pressure of 200bar at 90C. Using Kays rule, estimate the final volume of the gas.
A 0.4126-g sample of primary-standard Na2CO3 was treated with 40.00 mL of dilute perchloric acid. The solution was boiled to remove CO2, following which the excess HClO4 was back-titrated with 9.20...
Product quality assurance (QA) is a particularly tricky business in the dye manufacturing industry. A slight variation in reaction condition can lead to a measureable change in the color of the...
Consider a Lear jet flying at a velocity of 250 m/s at an altitude of 10 km, where the density and temperature are 0.414 kg/m 3 and 223 K, respectively. Consider also a one-fifth scale model of the...
Cloth bag filters are used to remove particulate matter from the gases passing out through several process and boiler stacks in a large industrial plant. The bags become clogged and must be replaced...
A commercial grade cubical freezer, 3 m on a side, has a composite wall consisting of an exterior sheet of 6.35-mm-thick plain carbon steel, an intermediate layer of 100-mm-thick cork insulation, and...
A gas containing water vapor has a dry-basis composition of 8.5 mole% CO. 10.5% CO2, 0.5% O2, and 80.5% N2. The gas leaves a catalyst regeneration unit at 620C and 1 atm with a dew point of 57C at a...
Consider a hypothetical microprocessor generating a 16-bit address (for example, assume that the program counter and the address registers are 16 bits wide) and having a 16-bit data bus. a. What is...
The following diagram shows a simplified version of how a refrigerator works: In a liquid receiver (1), a liquid refrigerant (any one of a number of halogenated hydrocarbons such as CC1 2 F 2 ) is...
If the bucket and its contents have total weight W, determine the force in the supporting cables DA, DB, and DC Given: W = 20 lb a = 3 ft b = 4.5 ft c = 2.5 ft d = 3 ft e = 1.5 ft f = 1.5 ft C d a D
The NACA 4412 airfoil has a mean camber line given by Using thin airfoil theory, calculate (a) ?L = 0 (b) c1 when ? = 3? [0.25 [0.8 +- (-)] 10.11 [0.2+0.8-()] C X for 0 0.4 C X for 0.4-1 C
A suspension of calcium carbonate particles in water flows through a pipe. Your assignment is to determine both the flow rate and the composition of this slurry. You proceed to collect the stream in...
A temperature scale that never quite caught on was formulated by the Austrian chemist Johann Sebastian Farblunget. The reference points on this scale were 0FB, the temperature below which Farblungets...
Sketch the [1123] and [1010] directions in a hexagonal unit cell.
Radioactive wastes (krw = 20 W/m K) are stored in a spherical, stainless steel (kss, = 15 W/m K) container of inner and outer radii equal to ri = 0.5 m and ro = 0.6 m. Heat is generated...
Two tractors pull on the tree with the forces shown. Represent each force as a Cartesian vector and then determine the magnitude and coordinate direction angles of the resultantforce. ac = 100 Ib Faa...
(a) Given the input binary sequence 1100100010, sketch the waveforms of the in-phase and quadrature components of a modulated wave obtained by using the QPSK based on the signal set of Figure. (b)...
Replace the loading system acting on the beam by an equivalent resultant force and couple moment at point O. Given: F1 = 200 N F2 = 450 N M = 200N m a = 0.2 m b = 1.5 m c = 2 m d = 1.5 m θ = 30...
Three gram-moles of benzene and 7 gram-moles of toluene are placed in a closed cylinder equipped with a piston. The cylinder is immersed in a boiling-water bath that maintains the temperature at...
A machine component is subjected to the forces shown, each of which is parallel to one of the coordinate axes. Replace these forces with an equivalent force-couple system at A. imi 240N I50 N 125 30...
A liquid mixture is prepared by combining N different liquids with densities p 1 , p 2 ,. .. .p N . The volume of component I added to the mixture is Vi and the mass fraction of this component in the...
A liquid mixture of benzene and toluene contains 55.0% benzene by mass. The mixture is to be partially evaporated to yield a vapor containing 85.0% benzene and a residual liquid containing 10.6%...
At low to moderate pressures the equilibrium state of the watergas shift reaction CO + H 2 O = CO 2 + H 2 is approximately described by the relation where T is the reactor temperature. K e is the...
The collar bearing uniformly supports an axial force P. If a torque M is applied to the shaft and causes it to rotate at constant velocity, determine the coefficient of kinetic friction at the...
Three different liquids are used in the manometer shown here. (a) Derive an expression for p 1 ? p 2 in terms of p A , p B , p C , h 1 , and h 2 . (b) Suppose fluid A is methanol, B is water, and C...
Air enters an adiabatic nozzle steadily at 300 kPa, 200°C, and 30 m/s and leaves at 100 kPa and 180 m/s. The inlet area of the nozzle is 80 cm2. Determine (a) The mass flow rate through the...
Locate the centroid y of the channel?s cross-sectional area, then determine the moment of inertia of the area about the centroidal x' axis. 0.5 in. 6 in. HHasin. -6.5 in.-6.5 in.-- 0.5 in. 0.5 in.
Using the isothermal transformation diagram for an iron?carbon alloy of eutectoid composition (Figure), specify the nature of the final microstructure (in terms of micro constituents present and...
Carbon monoxide at 25C and steam at 150C are fed to a continuous water-gas shift reactor. The product gas, which contains 40.0 mole% H2, 40.0% CO2, and the balance H2O (v), emerges at 500C at a rate...
The springs on the rope assembly are originally unstretched when ? = 0 o . Determine the tension in each rope when F = 90lb. Neglect the size of the pulleys at B and D. -2 ft- -2 ft- k= 30 lb/ft k=...
Chlorine absorption in a falling film (Fig. 18A.4), chlorine is being absorbed from a gas in a small experimental wetted-wall tower as shown in the figure. The absorbing fluid is water, which is...
The indicator dilution method is a technique used to determine flow rates of fluids in channels for which devices like rotameters and orifice meters cannot be used (e.g., rivers, blood vessels, and...
Arm AB has a constant angular velocity of 16 rad/s counterclockwise. At the instant when = 90?, determine the acceleration (a) Of collar D, (b) Of the midpoint G of bar BD. 60 mm 200 mm D 120 mm
Liquid methyl ethyl ketone (MEK) is introduced into a vessel containing air. The system temperature is increased to 55C, and the vessel contents reach equilibrium with some MEK remaining in the...
A force F is applied to the handles of the vise grip. Determine the compressive force developed on the smooth bolt shank A at the jaws. Given: F = 5 lb b = 1 in a = 1.5 in c = 3 in d = 0.75 in e = 1...
Air is heated from 25C to 150C prior to entering a combustion furnace. The change in specific enthalpy associated with this transition is 3640 J/mol. The flow rate of air at the heater outlet is...
Before a rotameter can be used to measure an unknown flow rate, a calibration curve of flow rate versus rotameter reading must be prepared. A calibration technique for liquids is illustrated below. A...
The gas-phase reaction between methanol and acetic acid to form methyl acetate and water CH 3 OH + CH 3 COOH = CH 3 COOCH 3 + H 2 O (A) (B) (C) (D) Takes place in a batch reactor and proceeds to...
A wastewater stream of 600 gpm, containing 10 ppm (by weight) of benzene, is to be stripped with air in a packed column operating at 25oC and 2 atm to produce water containing 0.005 ppm of benzene....
Determine the reactions at A and B when en (a) α = 0, (b) α =90°, (c) α =30°. 330 N 250 mm -250 mm 300 mm
A spherical, stainless steel (AISI 302) canister is used to store reacting chemicals that provide for a uniform heat flux q i to its inner surface. The canister is suddenly submerged in a liquid bath...
A cylinder with a movable piston contains 4.00liters of a gas at 30C and 5.00bar. The piston is slowly moved to compress the gas to 8.00bar. (a) Considering the system to be the gas in the cylinder...
Magnesium silicate, Mg2SiO4, forms in the olivine crystal structure that consists of an HCP arrangement of O2- ions. (a) Which type of interstitial site will the Mg2+ ions occupy? Why? (b) Which type...
The cable CED can sustain a maximum tension Tmax before it fails. Determine the greatest vertical force F that can be applied to the boom. Also, what are the x, y, z components of reaction at the...
Consider an opaque horizontal plate that is well insulated on its back side. The irradiation on the plate is 2500 W/m2 of which 500 W/m2 is reflected. The plate is at 227C and has an emissive power...
Electric current flows through a long rod generating thermal energy at a uniform volumetric rate of q = 2 X 10 6 W/m 3 . The rod is concentric with a hollow ceramic cylinder, creating an enclosure...
Humid air is enclosed in a 2.00-liter flask at 40C. The flask is slowly cooled. When the temperature reaches 20C, drops of moisture become visible on the flask wall. Although the pressure in the...
A rigid tank containing 0.4 m3 of air at 400 kPa and 30°C is connected by a valve to a pistoncylinder device with zero clearance. The mass of the piston is such that a pressure of 200 kPa is...
A 0.2219-g sample of pure iron wire was dissolved in acid, reduced to the +2 state, and titrated with 34.65 mL of cerium(IV). Calculate the molar concentration of the Ce4+ solution.
The force F has a magnitude F and acts at the midpoint C of the thin rod. Express the force as a Cartesian vector. Given: F = 80 lb a = 2 ft b = 3 ft c = 6 ft B F
One hundred pounds of CO2 is contained in a 10.0-ft3 tank. The safety limit of the tank is 1600 psig. Use the compressibility chart to estimate the maximum permissible gas temperature.
(a) Draw a flowchart for the catalytic dehydrogenation of propane from the description of this process that begins Section 4.3a. Label all feed, product and connecting streams between units. (b)...
Liquid methanol is fed to a space heater at a rate of 12.0 L/h and burned with excess air. The product gas is analyzed and the following dry-basis mole percentages are determined: CH 3 OH 0.45%. CO 2...
The beam Ab will fail if the maximum internal moment at D reaches 800 N ? m or the normal force in member BC becomes 1500 N. Determine the largest load w it can support. 4 m
Radioactive wastes are packed in a long, thin-walled cylindrical container. The wastes generate thermal energy non-uniformly according to the relation q = q v [1 (r/r o ) 2 ], where q is the local...
Insulation thickness for a furnace wall (Fig. 10B.6) a furnace wall consists of three layers: (i) a layer of heat-resistant or refractory brick, (ii) a layer of insulating brick, and (iii) a steel...
A natural gas contains 95 wt% CH 4 and the balance C 2 H 6 . Five hundred cubic meters per hour of this gas at 40C and 1.1bar is to be burned with 25% excess air. The air flow meter is calibrated to...
A closed stirred-tank reactor with two compartments is shown in figure. The basic idea is to feed the reactants continuously into the first compartment where they will be preheated by energy...
Approximately 10 6 discrete electrical components can be placed on a single integrated circuit (chip), with electrical heat dissipation as high as 30,000 W/m 2 the chip, which is very thin. is...
The worker is using the bar to pull two pipes together in order to complete the connection. If he applies a horizontal force F to the handle of the lever, determine the moment of this force about the...
An artificial kidney is a device that removes water and waste metabolites from blood. In one such device, the hollow fiber hemodialyzer, blood flows from an artery through the insides of a bundle of...
A motor draws electric power Pelec from a supply line and delivers mechanical power Pmech to a pump through a rotating copper shaft of thermal conductivity ks, length L, and diameter D. The motor is...
To loosen a frozen valve, a force F of magnitude 70 lb is applied to the handle of the valve. Knowing that at = 25, Mx = 61 lb ft, and Mz = 43 lb ft, determine and d. in.
The skewed truss carries the load shown. Determine the force in members AB, BF, and EF and state if these members are in tension or compression. Assume that all joints are pinned. TIP - E. B FE FBF ...
The contents of the stirred-tank heating system shown In figure are heated at a constant rate of Q(Btu/h) using a gas-fired heater. The flow rate w(lb/h) and volume V(ft3) are constant, but the heat...
Transpiration cooling in a planar system, two large flat porous horizontal plates is separated by a relatively small distance L. The upper plate at y = L is at temperature TL, and the lower one at y...
A steam pipe is wrapped with insulation of inner and outer radii, r i and r o , respectively. At a particular instant the temperature distribution in the insulation is known to be of the form Are...
A hexagonal plate is acted upon by the force P and the couple shown. Determine the magnitude and the direction of the smallest force P for which this system can be replaced with a single force at E....
A geared industrial roll shown in the figure is driven at 300 rev/min by a force F acting on a 3-in-diameter pitch circle as shown. The roll exerts a normal force of 30 lbf/in of roll length on the...
If the wheelbarrow and its contents have a mass of M and center of mass at G, determine the magnitude of the resultant force which the man must exert on each of the two handles in order to hold the...
Methanol is produced by reacting carbon monoxide and hydrogen at 644 K over a ZnOCr 2 O 3 catalyst. A mixture of CO and H 2 in a ratio 2mol H 2 /mol CO is compressed and fed to the catalyst bed at...
The radiation heat gage shown in the diagram is made from constantan metal foil, which is coated black and is in the form of a circular disk of radius R and thickness t. The gage is located in an...
An electronic device, in the form of a disk 20 mm in diameter, dissipates 100 W when mounted flush on a large aluminum alloy (2024) block whose temperature is maintained at 27C. The mounting...
The cable will fail when subjected to a tension Tmax. Determine the largest vertical load P the frame will support and calculate the internal normal force, shear force, and moment at a section...
Consider a composite wall that includes an 8-mm-thick hardwood siding. 40-mm by 130-mm hardwood studs on 0.65-m centers with glass fiber insulation (paper faced, 28 kg/m 3 ) and a 12-mm layer of...
An evaporationcrystallization process of the type described in Example 4.5.2 is used to obtain solid potassium sulfate from an aqueous solution of this salt. The fresh feed to the process contains...
A liquid stream containing 50.0mole% benzene and the balance toluene at 25C is fed to a continuous single-stage evaporator at a rate of 1320 mol/s. The liquid and vapor streams leaving the evaporator...
The rotating solid steel shaft is simply supported by bearings at points B and C and is driven by a gear (not shown) which meshes with the spur gear at D, which has a 6-in pitch diameter. The force F...
A poundal is the force required to accelerate a mass of 1 lbm at a rate of 1 ft/s 2 , and a slug is the mass of an object that will accelerate at a rate of 1 ft/s 2 when subjected to a force of 1...
Determine the smallest force the man must exert on the rope in order to move the crate of mass M. Also, what is the angle at this moment? The coefficient of static friction between the crate and the...
The heat capacity at constant pressure of hydrogen cyanide is given by the expression Cp[J/(mol C)] = 35.3 + 0.0291T(C) (a) Write an expression for the heat capacity at constant volume for HCN,...
Shaft a in the figure has a power input of 75 kW at a speed of 1000 rev/min in the counterclockwise direction. The gears have a module of 5 mm and a 20 pressure angle. Gear 3 is an idler. (a) Find...
A pressure cooker cooks a lot faster than an ordinary pan by maintaining a higher pressure and temperature inside. The lid of a pressure cooker is well sealed, and steam can escape only through an...
N-Butane is converted to isobutene in a continuous isomerization reactor that operates isothermally at 149C. The feed to the reactor contains 93 mole% n-butane, 5% isobutene, and 2% HC1 at 149C, and...
A log weighing 800 lb is lifted by a pair of tongs as shown. Determine the forces exerted at E and at F on tong DEF.
Two liquid streams are flowing at constant rates into a blender. One is benzene, which flows at a measured rate of 20.0 L/min, and the other is toluene. The blended mixture enters a storage tank...
For each of the following crystal structures, represent the indicated plane in the manner of Figures 3.11 and 3.12, showing both anions and cations: (100) plane for the rock salt crystal structure,...
An adult takes roughly 12 breaths each minute, inhaling approximately 500mL with each breath. Oxygen and carbon dioxide are exchanged in the lungs. The amount of nitrogen exhaled equals the amount...
Determination of capillary radius by flow measurement, one method for determining the radius of a capillary tube is by measuring the rate of flow of a Newtonian liquid through the tube. Find the...
A single equilibrium stage in a distillation column is shown in Figure. The model that describes this stage is (a) Assuming that the molar holdup H in the stage is constant and that equimolat...
Locate the centroid of the plane area shown. r= 16 in. a =8 in. a = S in.
By what percentage does a dilute aqueous solution expand when heated from 15 to 25C? If a 0.500 0 M solution is prepared at 15C, what would its molarity be at 25C?
. For the network of Fig. 5.172: a. Determine AVNL Zi, and Zo. b. Sketch the two-port model of Fig. 5.63 with the values determined in part (a). c. Determine AVL and AVs. d. Change RS to 1...
Methanol is formed from carbon monoxide and hydrogen in the gas-phase reaction The mole fractions of the reactive species at equilibrium satisfy the relation where P is the total pressure (atm). K e...
For the network of Fig. 5.151, determine Vcc for a voltage gain of Av = -200. 4.7
The oxidation of nitric oxide takes place in an isothermal batch reactor. The reactor is charged with a mixture containing 20.0 volume percent NO and the balance air at an initial pressure of 380 kPa...
A single-tank process has been operating for a long period of time with the inlet how rate q1 equal to 30.4 ft3/min. After the operator increases the flow rate suddenly by 10%, the liquid level in...
Determine the force P on the cable if the spring is compressed a distance when the mechanism is in the position shown. The spring has a stiffness k. Given: = 0.5 in c = 6 in k = 800lb/ft d = 6 in a...
A thick steel sheet of area 400 cm2 is exposed to air near the ocean. After a one-year period it was found to experience a weight loss of 375 g due to corrosion. To what rate of corrosion, in both...
Normal heptane is dehydrocyclicized to toluene and hydrogen in a continuous vapor-phase reaction: C7H16 C6H5CH3 +4 H2 Pure heptanes at 400C is fed to the reactor. The reactor operates isothermally...