Question 70 - According to Adolf Eugen Fick (1829

Question 70 - According to Adolf Eugen Fick (1829 - 1901) : rate of diffusion v increases with less wall thickness t, increased area A and decreased molecular weight of a fluid M. The diffusion constant D decreased with increasing M.

(a) By assuming v, t, dP, A, M and D changes proportionally of each other, find the equation of v as a function of t, dP, A and D.

(b) The ratio of self diffusion constant D, at T = 273 K and P = 0.1 MPa, for gases B and C are 1.604 : 0.155. If only 2 gases exist in such a system : hydrogen and nitrogen, find the type of gas for B and C with reference to their molecular weights M.

(c) By using the equation of kinetic energy 0.5 MV = constant where V = square of v, find the ratio of V for B and V for C, or V(B) / V(C), as a function of M(B) and M(C), where M(B) is molecular weight of B and M(C) the molecular weight of C : Graham's Law of Diffusion.

Question Posted / kang chuen tat (malaysia - pen

1 Answers
2399 Views
I also Faced
E-Mail Answers

Question 70 - According to Adolf Eugen Fick (1829 - 1901) : rate of diffusion v increases with less ..

Answer / kang chuen tat (malaysia - pen

Answer 70 -
(a) v = (dP) AD / t.

(b) Hydrogen has least M among all gases - general knowledge - highest D. Then B = hydrogen and C = nitrogen.

(c) Let 0.5 M(B) V(B) = 0.5 M(C) V(C), then V(B) / V(C) = M(C) / M(B).

The answer is given by Kang Chuen Tat; PO Box 6263, Dandenong, Victoria VIC 3175, Australia; SMS 61405421706; chuentat@hotmail.com; http://kangchuentat.wordpress.com.

Is This Answer Correct ?

0 Yes

0 No

Post New Answer

More Chemical Engineering Interview Questions

What information is needed to specify a mixer?

0 Answers

which is more effective , a single extraction with a large volume of solvent or several small volume extractions? Explain.

2 Answers

what is the difference between absorber and scrubbers

4 Answers Parco,

How does a cyclone separator work?

0 Answers

Name some common problems associated with dense phase pneumatic conveying?

0 Answers

Explain what are some good uses of low-grade steam at 12 atm and 1920c?

0 Answers

Explain what are some typical applications for glass-lined reactors?

0 Answers

In Pressure Sfety Valve(PSV) 2" by pass line why given for process units.

0 Answers Essar,

NATURAL GAS ENGINEERING - QUESTION 26.2 : (a) The Hyperion sewage plant in Los Angeles burns 8 million cubic feet of natural gas per day to generate power in United States of America. If 1 metre = 3.28084 feet, then how many cubic metres of such gas is burnt per hour? (b) A reservoir of natural gas produces 50 mole % methane and 50 mole % ethane. At zero degree Celsius and one atmosphere, the density of methane gas is 0.716 g / L and the density of ethane gas is 1.3562 mg / (cubic cm). The molar mass of methane is 16.04 g / mol and molar mass of ethane is 30.07 g / mol. (i) Find the mass % of methane and ethane in the natural gas. (ii) Find the average density of the natural gas mixture in the reservoir at zero degree Celsius and one atmosphere, by assuming that the gases are ideal where final volume of the gas mixture is the sum of volume of the individual gases at constant temperature and pressure. (iii) Find the average density of the natural gas mixture in the reservoir at zero degree Celsius and one atmosphere, by assuming that the final mass of the gas mixture is the sum of mass of the individual gases. Assume the gases are ideal where mole % = volume % at constant pressure and temperature.

1 Answers

Why is steam added into the cracker in thermal cracking?

2 Answers

What is an isochoric process?

0 Answers

QUANTUM BIOLOGY - EXAMPLE 33.3 : In quantum biology, microtubule is used to store information in a cell. At temperature of T = 300 K, measured current I in a probe is directly proportional to the supplied voltage V, when passing through a microtubule with resistance R. (a) Form an equation of V as a function of I involving k as a constant. (b) If the microtubule has R = 1 ohm at such condition, find the value of V when I = 2 A. Hint : Ohm's law. (c) Find the relationship of k as a function of R.

1 Answers

For more Chemical Engineering Interview Questions Click Here