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estimate the coefficient of viscosity of the following gas mixture at 5420psig a

ID: 823283 • Letter: E

Question

estimate the coefficient of viscosity of the following gas mixture at 5420psig and 175 degrees F given the following information.


Composition                           Composition mole fraction

1.hydrogen sulfide                    0.1

2. carbon dioxide                       0.05

3. nitrogen                                   0.021

4. methane                                  0.703

5. ethane                                      0.062

6. propane                                    0.037

7. n-butane                                   0.027


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Explanation / Answer

first u need to claculate the molefraction of the mixture of the gases for that u need to know the molecular weights of the gases given to u

H2S=34,

CO2=44,

N2=28,

CH4=16,

C2H6=30,

C3H8=44,

C4H10=58,

Let us assume the molefractions are M1,M2,M3,M4,M5,M6,M7 respectively for the given gases

now mole fraction of the mixture is


M=(0.1*34+0.05*44+0.021*28+0.0703*16+30*0.062+0.037*44+0.027*58)/254

M=0.049

now presure is given in pound per square inch we have to convert it to newton per square meter

5420psig=373695584.458N/meter square

convert the given temperature to kelvin

175F=35.2.6K

now apply the formula given for the calculation of coefficient of viscocity