Engineering, 17.04.2020 18:18 Nicaragua505

At a particular instant in time, the mole fraction of chlorine (C) in air at 1.0 atm and 298 K varies with position z (from 0 to 1 cm) by the following equation: yc = z2-22+1 The diffusion coefficient of chlorine in air is 0.10 cm'/s. If the mole average velocity is equal to zero, determine

i. The concentration of the gas mixture.
ii. The concentration ofchlorine at z 0.4 cm.
iii. The molar diffusional flux ofchionne at z = 0.4 cm, what does the sign indicate?
iv. The velocity ofchlorine at z = 0.4 cm.
v. The velocity ofair at z = 0.4 cm.
vi. Draw a graph containing chlorine mole fraction as a function of z position. On the same set of axes (but using different scale!) plot the molar diffusional flux as a function of z position. What will the concentration profile of chlorine look like (i. e ., sketch) a short time period in the future?

Answers: 2

Show answers

Another question on Engineering

Engineering, 03.07.2019 15:10

Heat is added to a piston-cylinder device filled with 2 kg of air to raise its temperature 400 c from an initial temperature of t1 27 cand pressure of pi 1 mpa. the process is isobaric process. find a)-the final pressure p2 b)-the heat transfer to the air.

Answers: 1

Answer

Engineering, 04.07.2019 18:10

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Answers: 3

Answer

Engineering, 04.07.2019 18:10

Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation

Answers: 1

Answer

Engineering, 04.07.2019 18:10

Machinery that is a key part of the process and without which the plant or process cannot function is classifed as: (clo4) a)-critical machinery b)-essential machinery c)-general purpose machinery d)-none of the specified options.

Answers: 1

Answer

You know the right answer?

At a particular instant in time, the mole fraction of chlorine (C) in air at 1.0 atm and 298 K varie...

Questions