A mixture of carbon monoxide and carbon dioxide is found to have a density of 1.7g/lit at S.T.P. The mole fraction of carbon monoxide is

Monjur Alahi

A mixture of carbon monoxide and carbon dioxide is found to have a density of 1.7g/lit at S.T.P. The mole fraction of carbon monoxide is
A. 0.37
B. `0.40`
C. `0.30`
D. `0.50`


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Salim Ahmed Kawsar

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Correct Answer - A
`M_("mix")=(dRT)/P_("mix")implies M_("mix")=(1.7xx0.0821xx273)/1=1.7xx22.4` gms
`M_("mix")=X_(CO)xxM_(CO)+(1-X_(CO).M_(CO_2)=X_(CO)xx18+(1-X_(CO))xx44 implies X_(CO)=0.37`

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