A mixture of gases in a cyliner at `760 mm` pressure contains `65 %` nitrogen, `15%` oxygen, and `20%` carbon dioxide by volume. What is the partial pressure of each gas in `mm`?

Explanation

`P_(N_(2))=(760xx65)/(100)=494 mm`
`P_(O_(2))=(760xx15)/(100)=114mm`
`P_(CO_(2))=(760xx20)/(100)=152mm`