A gaseous mixture was prepared by taking equal mole of CO and `N_(2)` . If the total pressure of the mixture was found 1 atmosphere, the partial pressure of the nitrogen `( N_(2))` in the mixture is `:`

Options

A. 0.5 atm
B. 0.8 atm
C. 0.9 atm
D. 1 atm

Answer

A

Explanation

`n(CO) = n ( N_(2))`
`p ( CO ) + p ( N_(2)) = 1 atm`
Mole fraction of `N_(2), ""^(x)N_(2) = ( 1)/( 1+1) = 0.5 `
`p(N_(2)) = p xx ""^(x) N_(2) = 1 xx 0.5 = .0.5 atm`