8. Thermochemistry - Part 3 of 3
8. Thermochemistry / Hess's Law / Problem 12
Calculate ΔH°rxn for the following reaction: 2 C(s) + H2(g) → C2H2(g)
Use the given data below:
C2H2(g) + 5/2 O2(g) → 2 CO2(g) + H2O(l) ΔH° = −1299.5 kJ
C(s) + O2(g) → CO2(g) ΔH° = −393.5 kJ
H2(g) + 1/2 O2(g) → H2O(l) ΔH° = −285.8 kJ
Was this helpful?
Learn this concept