Engineering

2 years ago

An absorption tower, operating at 20oC and 1 atm, is used to adsorb sulfur dioxide from an air

An absorption tower, operating at 20oC and 1 atm, is used to adsorb sulfur dioxide from an air mixture into water. At one point in the absorber, the mol fraction of SO2 in the gas stream is 6 mol% and the mol fraction of SO

90daytona 95 2 Replies

6 years ago

Consider a waste treatment process in which wastewater containing trichloroethylene (TCE)

Consider a waste treatment process in which wastewater containing trichloroethylene (TCE) at a concentration of 50 mol/m3 enters a clarifier, which is essentially a shallow, well-mixed tank with an exposed liquid surface. The overall diame

90daytona 103 2 Replies

6 years ago

Lead is used in a number of manufacturing industries. To prevent lead vapor from escaping from a mol

Lead is used in a number of manufacturing industries. To prevent lead vapor from escaping from a molding unit, the vapors from the unit are passed through a chilling unit to condense the lead vapor. What is the enthalpy change per Kg mol of lead if t

90daytona 126 2 Replies

6 years ago

Which of the following statements most accurately explains why triethylamine is a stronger base that

Which of the following statements most accurately explains why triethylamine is a stronger base that 1-aminohexane?

a. 1-aminohexane is a stronger acid than triethylamine because of hydrogen bonding.
stronger acid=weaker base.

90daytona 241 N/A

6 years ago

Briefly explain the following giving relevant questions, if necessary. The answers for this questio

briefly explain the following giving relevant questions, if necessary. The answers for this question should not be more than 1 1/2 pages in length.

sensitivity and selectivity
Explain the following:
i) calibration sensitivity

90daytona 235 N/A

6 years ago

Briefly explain the following giving relevant questions about Accuracy and Precision , if necessary

briefly explain the following giving relevant questions, if necessary. The answers for this question should not be more than 1 1/2 pages in length.

Accuracy and Precision
Explain the following:
i) Accuracy
ii)

90daytona 88 1 Reply

6 years ago

N a dry cleaning establishment warm dry air is blown through a revolving drum in which clothes are t

In a dry cleaning establishment warm dry air is blown through a revolving drum in which clothes are tumbled until all of the Stoddard solvent is removed. The solvent may be assumed to be n-octane (C8H18) and have a vapor pressur

90daytona 325 1 Reply

6 years ago

A drier must remove 200 Kg of H2O per hour from a certain material. Air at 22oC

A drier must remove 200 Kg of H2O per hour from a certain material. Air at 22oC and 50% relative humidity enters the drier and leaves at 72oC and 80% relative humidity. What is the weight (in Kg) of dry air used per h

90daytona 440 1 Reply

6 years ago

A liquid mixture of n-pentane and n-hexane containing 40 mol percent n-pentane is fed continuously t

A liquid mixture of n-pentane and n-hexane containing 40 mol percent n-pentane is fed continuously to a flash separator operating at 250oF and 80 psia. Determine:

a) the quantity of vapor and liquid obtained from the separ

90daytona 510 1 Reply

6 years ago

Figure below shows a three-stage separation process. The ratio of P3/D3 is 3 the ratio of P2/D2 is 1

Figure below shows a three-stage separation process. The ratio of P3/D3 is 3 the ratio of P2/D2 is 1, and the ratio of A to B in stream P2 is 4 to 1. Calculate the composition and percent of each component in stream E.

CHE 200 -Chem

1 2 3 4

90daytona 3352 43 Replies

Alba Perea

5 months ago

A cereal is being dried in a vertical drier by air flowing countercurrent to the cereal. To prevent

A cereal is being dried in a vertical drier by air flowing countercurrent to the cereal. To prevent breakage of the cereal flakes, exit air from the drier is recycled. For W = 1000 kg/h of wet cereal fed to the drier, calculate the input of moist fre

90daytona 493 2 Replies

candelario Ocaña Vazquez

10 months ago

Toluene reacts with H2 to form benzene (B), but a side reaction occurs in which a by-product dipheny

Toluene reacts with H2 to form benzene (B), but a side reaction occurs in which a by-product diphenyl (D) is formed:

C7H8 + H2 ---------

90daytona 637 2 Replies

6 years ago

Two hundred kg/min of steam enters a steam turbine at 350°C and 40 bar through a 7.5-cm diameter ...

Two hundred kg/min of steam enters a steam turbine at 350°C and 40 bar through a 7.5-cm diameter line and exits at 75°C and 5 bar through a 5-cm line. the existing stream may be vapor, liquid, or "wet steam".
(a) if the exiting stream

90daytona 2997 2 Replies

Junayed

2 years ago

A stream of pure cyclopentane vapor flowing at a rate of 1550 L/s at 150oC and 1 atm enters a cooler

A stream of pure cyclopentane vapor flowing at a rate of 1550 L/s at 150oC and 1 atm enters a cooler in which 55% of the feed is condensed at constant pressure.

(a) What is the temperature at the condenser outlet? Explain how y

90daytona 3530 1 Reply

6 years ago

Based on the product distribution assuming that no C3H5Cl were present in the feed, calculate the

Consider these two reactions:

Cl2 (g) + C3H6 (g) ------------------> C3H5Cl (g) + HCl &n

90daytona 117 1 Reply

cloveb

6 years ago

CHY 102 General Chemistry 2016 Term Test #1

dentify the formula for barium nitride.

A)B(N◊,2)3
B) BN
C)Ba(NO2)2
D) Ba3N2
E) BaNO

90daytona 192 2 Replies

mathinator

5 years ago

Please assist with the following questions (Axles, 4Wd, And Awd)

3. Which of the following statements is true of most 4WD vehicles?

A. The gear ratios of both front and rear differentials are the same.
B. The relationship of the front and rear differential gear ratios varies

aantonopoulos 164 2 Replies

bio_man

5 years ago

With the increased use of electronic data, including CAD, the use of paper has been greatly reduced. ...

With the increased use of electronic data, including CAD, the use of paper has been greatly reduced.

Indicate whether the statement is true or false

Abisf 47 1 Reply

vonda_smith

6 years ago

Concrete members that have steel embedded in them are called pre-stressed concrete. (True or false?)

Concrete members that have steel embedded in them are called pre-stressed concrete.

Indicate whether the statement is true or false

Abisf 89 2 Replies

6 years ago

The two main types of projection are:

The two main types of projection are:

a. Orthographic and isometric
b. Cabinet and third angle projection
c. First and third angle projection
d. Parallel and perspective projection
&n

Abisf 45 2 Replies

6 years ago

What are the three methods to transfer depth dimensions?

What are the three methods to transfer depth dimensions?

a. Dividers, scale, and miter line
b. Dividers, compass, and miter line
c. Scale, compass, and dividers
d. Scale, compass, and miter

Abisf 49 1 Reply

tru.alx

6 years ago

The four main elements of perspective drawing includes all of the following except:

The four main elements of perspective drawing includes all of the following except:

a. Observer's eye
b. Rotation of the object
c. Object being view
d. Plane of projection
e. Pr

Abisf 47 1 Reply

grrgrrl

6 years ago

A key is used to prevent relative movement between a shaft and wheel. (True or false?)

A key is used to prevent relative movement between a shaft and wheel.

Indicate whether the statement is true or false

Abisf 52 2 Replies

6 years ago

A 3D polyline is a single continuous object made of lines and arc segments. (True or false?)

A 3D polyline is a single continuous object made of lines and arc segments.

Indicate whether the statement is true or false

Abisf 41 2 Replies