Find the steady state concentration if the air in the box

Assignment Help Civil Engineering
Reference no: EM13544556

Consider the air over a city to be a box 100km on a side that reaches up to an altitude of 1.0 km. The air is blowing into the box along one of its sides with a speed of 4 m/s. Suppose an air pollutant with a reaction rate of K = 0.30/hr is emitted into the box at a total mass loading rate of 10 kg/s. Find the steady state concentration if the air in the box is assumed to be perfectly mixed.

Reference no: EM13544556

Questions Cloud

What is the difference in water levels between reservoirs : A wrought iron water line connecting two reservoirs at 20°C has a length of 1500 m, a diameter of 75 cm, two elbows (90º, long-radius, flanged), a fully open gate valve, and a reentrant pipe entrance.
Find the magnitude of the velocity and acceleration for the : Sketch the flow field defined by u=3y, v=2 and derive expressions for the x and y components of acceleration. Find the magnitude of the velocity and acceleration for the point having the coordinates (3,4). Specify units in terms of L and T.
Parallel and perpendicular lines : Write an equation in slope-intercept form of the line that passes through the given point and is perpendicular to the given line - Write an equation in slope-intercept form of the line.
Use a numerical method to estimate the excess pore pressure : At the site of a large scale land reclamation project 2 m of sand overlie a silty clay layer 5 m thick, which overlies highly fractured permeable rock.
Find the steady state concentration if the air in the box : Consider the air over a city to be a box 100km on a side that reaches up to an altitude of 1.0 km. The air is blowing into the box along one of its sides with a speed of 4 m/s
Determine the force p that must be applied to the cylinder : The brass tube AB (E=105 GPa) has a cross-sectional area of 140 mm^2 and is fitted with a plug at A. The tube is attached at B to a rigid plate that is itself attached at C to the bottom of an aluminum cylinder
Determine the required do concentration in the treatment : Given the following information, determine the required DO concentration in the treatment plant effluent discharge in order to ensure that at no point downstream the DO in the river drops below 4 mg/L:
Determine the required diameter of the thread : A nylon thread is to be subjected to a 10-N tension. Knowing that E=3.2 GPa, that the maximum allowable normal stress is 40 MPA, and that the length of the thread must not increase by more than 1%, determine the required diameter of the thread.
What will be the steady-state concentration of selenium : If the farmer irrigates continuously, what will be the steady-state concentration of selenium in the stream downstream from the farm (after the irrigation run-off returns to the stream)?

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine the maximum concentrated load

Determine the maximum concentrated load that can be applied at the center of a 6 in. X 6 in. simply-supported plain concrete beam before it cracks in tension.

  Define procedure of gauss-newton method used to control

explain in your words the procedure of the Gauss-Newton method used to control some parameter (z) to meet some expected performance (y) using controllable parameters (A,B)

  Calculate the time required for the particle

A 10 m diameter particle of unit density falls through air starting from rest. calculate the time required for the particle to attain 70% of the final terminal speed and the distance traveled by the particle during the time.

  Determine what is the inductance assumed constant

The variable capacitor in the tuner of an AM radio has a capacitance of 135pF. When the radio is tuned to a station at 550kHz what is the capacitance for station at 1600kHz.

  Determine the total deflection due to the two weights

a cantilevered W12X136 (ASTM-A36) steel member beam is 18 feet in length. if a concentrated load of 12 kips is applied at a point 6.25 feet from the beam's free end, use the superposition technique

  Determine what manometer reading can be expected

Is this flow laminar. What is the viscosity of the oil. For the same flow in the opposite directio, what manometer reading can be expected.

  Calculate volume of thickened sludge with solids recovery

A gravity thickener receives 33.000 Lpd of wastewater sludge and increases the solids content from 3.0% to 7.0% with 90% solids recovery. Calculate the volume of thickened sludge.

  Determine the temperature t and the specific volume

A turbine expands to a pressure of 10 kPa and a quality of 0.94. Determine the temperature T and the specific volume at this state.

  Determine sequent depth and length of the hydraulic jump

A spillway carries a discharge of 22.5 m^3/s with the outlet velocity of 15 m/s at a depth of .2 m. Select an adequate USBR stilling basin and determine the sequent depth, the length of the hydraulic jump and the energy loss.

  Find the total head loss if the flow velocity is 4 fps

one open globe valve, one medium-radius elbow, and one 90 degrees pipe bend (kb=0.13) with a radius of curvature of 45 in. The length of the bend is not included in the 110 ft.

  Calculate annual costs of meeting proposed effluent

(a) Calculate the annual costs ($/yr) of meeting the proposed effluent requirement of 0.1 mg P/L using alum to precipitate AlPO4(s). Assume the chemical formula for alum is Al2(SO4)3·18H2O (MW = 666).

  Determine the magnitude and direction of the shear stress

Crude oil, with specific gravity SG=0.85 and viscosityμ = 2.15×10−3 lbf sec/ft2, flows steadily down a surfaceinclined θ = 30 degrees below the horizontal in a film ofthickness h=0.125 in. The velocity profile is given by u =ρg/μ(hy − y2/2)sinθ

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd