Assuming that petrol is octane `(C_(8)H_(18))` and has density `0.8 g//ml, 1.425 litre` of petrol on complete combustion will consume

Options

A. 50 mole of `O_(2)`
B. 100 mole of `O_(2)`
C. 125 mole of `O_(2)`
D. 200 mole of `O_(2)`

Answer

C

Explanation

`CO_(2)+Crarr 2Co`
`{:("Initial volumes"," 1.0 Lit 0.0 Lit"),("Volume reacted"," x 2x"),("Final volumes"," "1-x" "0+2x),("Toal volume",=1-x+2x=1.4),(,=1+x=1.4),(,thereforex=0.4Lit):}`
`"volume of "CO_(2)=1-x=0.6Lit`
`"Volume of CO"=2x=0.8Lit`