2(H-CC- + 5(0 = 0) -> 4(0 - C + 0) + 2(H - O - H)
839kJ / m * ol
C equiv C
495kJ / m * o
0 = 0
C-H
# of bonds
# of bonds
413kJ / m * o
# of bonds
358kJ / m * o
467kJ / m * o
# of bonds
HO
# of bonds
(product/reactant) side
(product/reactant) side
Energy:
(product/reactant) side
Energy
Energy:
(product/reactant) side (product/reactant) side
Energy:
Add the energies on the reactant side
kJ/mol
Add the energies on the product side
kJ/mol
This reaction is (exothermic / endothermic)
The reaction (produces / absorbs) 1306.5 kJ when moles of acetylene (C_{2}*H_{2}) reacts.
Energy:
2(H-C≡C-H) + 5(O₂) → 4(CO₂) + 2(H₂O)
839 kJ/mol
C≡C
495 kJ/mol
0 = 0
C-H
1 bond
1 bond
413 kJ/mol
2 bonds
358 kJ/mol
467 kJ/mol
2 bonds
H-O
1 bond
(product/reactant) side
(product/reactant) side
Energy:
(product/reactant) side
Energy:
Energy:
(product/reactant) side (product/reactant) side
Energy:
Add the energies on the reactant side:
839 kJ/mol + 495 kJ/mol + 413 kJ/mol
Add the energies on the product side:
4(358 kJ/mol) + 2(467 kJ/mol)
This reaction is exothermic.
The reaction produces 1306.5 kJ when moles of acetylene (C₂H₂) reacts.
Energy: 839 + 495 + 413 = 1747 kJ/mol
Energy: 4(358) + 2(467) = 2906 kJ/mol