Pressure of a mixture of 4 g of `O_(2)` and `2 g H_(2)` confined in a bulb of 1 litre at `0^(@)C` is

Options

A. 25.215 atm
B. 31.205 atm
C. 45.215 atm
D. 15.210 atm

Answer

A

Explanation

No. of moles of `O_(2)=(4)/(32)=0.125`
No. of moles of `H_(2)=(2)/(2) =1`
Total no. of moles ` = 1+0.125= 1.125`
`P= (nRT)/(V)= (1.125 xx 0.0821 xx 273)/(1)=25.21 atm`