1.

In the reaction S + 3/2 O_2 to SO_3 2x kJ and SO_2+ 1/2 O_2 to SO_3 ykJ heat of formationof SO_2 is

Answer»

`x-y`
`2x+y`
`x+y`
`2x-y`

SOLUTION :`S+3/2O_(2)toSO_(3)+2x KJ " " …(i)`
`SO_(2)+1/2 O_(2) to SO_(3) + y kJ"" ….(II) `
`S+O_(2) to SO_(2) + q kJ "" ….(iii)`
Equation (iii) can be OBTAINED by subtracting equation (ii) from (i)
`rArr q = 2x - y kJ `
Enthalpy of formation `(DeltaH_(f)) = - q = - (2x-y) = y - 2x`


Discussion

No Comment Found

Related InterviewSolutions