What is the total pressure exerted by the mixture of `7.0g ` of `N_(2),2g` of hydrogen and `8.0g` of sulphur dioxide gases in a vessel of `6L` capacity that has been kept at `27^(@)C`.

Options

A. `2.5` bar
B. 4.5 bar
C. 10 `atm`
D. 5.7 bar

Answer

4

Explanation

No. of moles of `N_(2)=(7)/(28)=(1)/(4)` moles
No. of moles of `H_(2)=1` moles
No. of moles of `SO_(2)=(1)/(8)` moles
Total moles `=(1)/(4)+1+(1)/(8)=(11)/(8)`
`P=(nRT)/(V)=(11)/(8)xx(0.0821xx300)/(6)=5.64~~5.7atm`