Question

Calculate the enthalpy of formation of acetic acid if the enthalpy of combustion to `CO_(2)(g)` and `H_(2)O(l)` is `- 867.0 kJ mol^(-1)` and enthalpies of formation of `CO_(2)(g)` and `H_(2)O(l) ` are respectively -393.5 and -285.9 kJ `mol^(-1)`

Answer 1

Correct Answer - `-491.8 kJ mol^(-1)`
Aim `: 2C(s) + 2H_(2) (g) + O_(2)(g) rarrCH_(3)COOH,DeltaH = ?`