Column A
1.
How much energy is needed to break the O=O double bond?:
How much energy is needed to break the O=O double bond?
2.
How much energy is needed to break the 2 F-F bonds?:
How much energy is needed to break the 2 F-F bonds?
3.
What is the combined energy absorbed for the reactant side of the equation? (Hint: add up the energies needed to break the bonds in O2 and F2)
:
What is the combined energy absorbed for the reactant side of the equation? (Hint: add up the energies needed to break the bonds in O2 and F2)
4.
What is the total amount of energy released when forming the 4 O-F bonds of the product?:
What is the total amount of energy released when forming the 4 O-F bonds of the product?
5.
What is the total energy of the reaction? (Use the formula: Total bond energies of reactants - Total bond energies of products)
:
What is the total energy of the reaction? (Use the formula: Total bond energies of reactants - Total bond energies of products)
6.
Based on the value of the total energy of the reaction, is this reaction endothermic or exothermic?:
Based on the value of the total energy of the reaction, is this reaction endothermic or exothermic?
Column B
a.+45 kJ/mol
b.Exothermic
c.Endothermic
d.190 kJ/mol
e.760 kJ/mol
f.155 kJ/mol
g.310 kJ/mol
h.805 kJ/mol
i.495 kJ/mol
1. g. 310 kJ/mol
2. f. 155 kJ/mol
3. h. 805 kJ/mol
4. i. 495 kJ/mol
5. a. +45 kJ/mol
6. b. Exothermic