1.

At an under water depth of 400 feet, the pressure is 10 atm. What should be the mole fraction of oxygen in dibing gas for partial pressure of oxygen in the mixture to be 0.2 atm, the same as in air at 1 atm

Answer»

<P>`0.2`
`0.02`
`0.1`
`0.4`

Solution :`P_(O_(2)) = X_(O_(2)) XX P_(T)`
`X_(O_(2)) = (0.2)/(10) = 0.02`


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