`2Fe+(3)/(2)O_(2)rarr Fe_(2)O_(3)" "xkJ//mol e`
`2Fe+O_(2) rarr 2FeO" " ykJ //mol e`
The `DeltaH` to form one mole of `Fe_(3)O_(4)` from `Fe` and `O_(2)` is `:`

Options

A. `(x)/(2)+y`
B. `(2x+y)/(2)`
C. `(2x-y)/(2)`
D. `(y-2x)/(2)`

Answer

2

Explanation

`{:(2Fe+(3)/(2)O_(2),rarr,Fe_(2)O_(3),,xkJ//mol e(2)),(2Fe+O_(2),rarr,2FeO,,ykJ//mol exx(1)):}`
`bar(6Fe+4O_(2)rarr2Fe_(2)O_(3)+2FeO)`
`:.2x+y=2` mole of `F_(3)O_(4)" "( :'FeO+Fe_(2)O_(3)rarr Fe_(3)O_(4))" ":.1` mole of `Fe_(3)O_(4)=((2x+y)/(2))`