Transcribed Image Text: Q5/ A gaseous mixture of CO, CO2, CH4, and N2 is analyzed with a gas chromatograph. The output

Excerpt
indicated substance in the sample. From other information, it is known that the molar ratio of methane (CH.) to nitrogen is 0.200. (a) What are the mole fractions of the four species in the gas? (b) What is the average molecular weight of the gas?

Transcribed Image Text: Q5/
A gaseous mixture of CO, CO2, CH4, and N2 is analyzed with a gas chromatograph. The
output appears on a computer monitor, as shown in below table.
Component
co
CH.
No. moles
40
25
м
28
16
CO2
80
44
CH 20
N2
28
For each of the three species, the area under the peak is approximately proportional to the
number of moles of the indicated substance in the sample. From other information, it is
known that the molar ratio of methane (CH.) to nitrogen is 0.200.
(a) What are the mole fractions of the four species in the gas?
(b) What is the average molecular weight of the gas?

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