Given that C+ O_(2) to CO_(2)DeltaH^(@) = -x kJ 2CO+ O_(2) to 2CO_(2) DeltaH^(@) = -y kJ The enthalpy of formation of CO will be

Given that C+ O_(2) to CO_(2)DeltaH^(@) = -x kJ 2CO+ O_(2) to 2CO_(2

1.	Given that C+ O_(2) to CO_(2)DeltaH^(@) = -x kJ 2CO+ O_(2) to 2CO_(2) DeltaH^(@) = -y kJ The enthalpy of formation of CO will be
Answer» `y -2x` `(2x -y)/(2)` `(y - 2x)/(2)` `2x -y` Solution :(i) `C+ O_(2) to CO_(2)DELTAH = -x KJ` (ii) `2CO+ O_(2) to 2CO_(2)DeltaH = -y kJ` The REQUIRED equation is `C + 1/2O_(2) to CODeltaH` = ? Divinding eqn (ii) by 2 (iii) `CO+1/2O_(2) to CO_(2) DeltaH = -y/2 kJ` SUBTRACT eqn (iii) from eqn (i) `C + 1/2 O_(2) to CODeltaH - x + y/2` or `= (y - 2x)/(2)`.