Calculate the total pressure in a mixture of `4 g` of oxygen and `2 g` of hydrogen confined in a total volume of `1 L` at `0^(@)C`.

Options

A. `25. 184 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)`
Total no. of moles `=1+0.125= 1.125= 1.125`
`P=(nRT)/(V)= (1.125xx0.082xx273)/(1)=25.184 atm`.