need HELP with these reactions! will give out rep
3. Given the data:
4NH3(g) + 3O2(g) ? 2N2(g) + 6H2O(l), ?H = -1530kJmol-1
H2(g) + 1/2O2(g) ? H2O(l), ?H = -288 kJmol-1
Calculate the enthalpy of formation of ammonia.
8. Given the following data:
CH4(g) + 2O2(g) ? CO2(g) + 2H2O(l) ?H = -890 kJmol-1
CO(g) + 1/2O2(g) ? CO2(g) ?H = -284 kJmol-1
C(s) + O2(g) ? CO2(g) ?H = -393 kJmol-1
H2(g) + 1/2O2(g) ? H2O(l) ?H = -286 kJmol-1
Calculate:
a) The enthalpy of formation of methane
b) The enthalpy of formation of carbon monoxide
c) The enthalpy change when methane is burned in limited oxygen to form carbon monoxide and water.