At STP a contains has 1 mole of `H_(2)` 2 mole `Ne,` 3 mole `O_(2)` and 4 mole `N_(2)`. Without changing total pressure if 2 mole of `O_(2)` is removed, the partial pressure of `O_(2)` will be decreased by

Options

A. `26%`
B. `40%`
C. `58.33%`
D. `66.66%`

Answer

3

Explanation

`P_(O_(2))=(3)/(10)xxP_(T)`
After removing 2 mole of `O_(2)`
`P'_(O_(2))=(1)/(8)xxP_(1)`
Decrease in partial pressure of `O_(2)=((3P_(T))/(10)-(P_(T))/(8))/((3P_(T))/(10))xx100=58.33%`