Question

2. (a) Calculate the heat of reaction Co + 1/202,CO2
from the following data.
C(s) + O2(g) →CO2 AH=-394.9KJ/mol
C(s) + 2O2(g) →CO (9) AH=-110KJ/mol​

Answer 1

Answer:

-70 kJ

Explanation:

The equation (2) and equation (3) is reversed. They are then added to the equation (1).

Hence, the heat of formation of methane is  -394-568 + 394=-568 kcal