Question

Diketahui :
* CH3OH + 3/2 O2→ CO2 + 2H2O ▲H= -726 kJ
* C + O2→ CO2 ▲H= -393,5 kJ
* H2 + 1/2 O2 → H2O ▲H=-285 kJ

Hitunglah ▲Hf° CH3OH.
mohon bantuannya, pakai cara

Answer 1

Reaksi Delta pembentukan CH3OH CO2 + 2H2O ---> CH3OH + 3/2O2 Delta H = 726 kj/mol C + O2 ---> CO2 Delta H = -393,5 kj/mol H2 + 1/2O2 ---> H2O Delta H = -285 kj/mol coret-coret C + H2 + H2O ---> CH3OH Delta H = 47,5 kj/mol