From the following data
`CH_(3)OH(l)+(3)/(2)O_(2)(g) rarr CO_(2)(g) +2H_(2)O(l)`
`Delta_(r) H^(@)=-726 kJ mol^(-1)`
`H_(2)(g)+(1)/(2)O_(2)(g) rarr H_(2)O(l), Delta _(r) H^(@)=-286 kJ mol^(-1)`
`C("graphite") +O_(2)(g) rarr CO_(2)(g), Delta _(r) H^(@)=-393 kJ mol^(-1)`
The standard enthalpy of formation of `CH_(3)OH(l)" in "kJ mol^(-1)` is

Options

A. `z = x +y `
B. `x = y + z`
C. `y = 2 z - x `
D. `x = y - z `

Answer

B