Vapour pressure of dilute solution of glucose is 750m of mercury at 373K. The mole fraction of solute is
Vapour pressure of dilute solution of glucose is 750m of mercury at 373K. The mole fraction of solute is
A. `1//76`
B. `1//7.6`
C. `1//38`
D. `1//10`
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Correct Answer - A
At `373 K (100^(@)C)` V.P. of water, `P^(@)=760 mmHg, P_(s) = 750 mmHg`
`(P^(@)-P_(s))/(P^(@))=x_(B)`
`(760-750)/(760)=x_(B)`
`x_(B)=(1)/(76)`
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