| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.sl.TZ2.17 |
| Level | SL | Paper | 1 | Time zone | TZ2 |
| Command term | Identify | Question number | 17 | Adapted from | N/A |
Question
The reaction between methane and oxygen is exothermic.
\({\text{C}}{{\text{H}}_4}({\text{g)}} + {\text{2}}{{\text{O}}_2}({\text{g)}} \to {\text{C}}{{\text{O}}_2}({\text{g)}} + {\text{2}}{{\text{H}}_2}{\text{O}}({\text{g)}}\)
Which statement is correct?
A. The total bond enthalpies of the reactants are less than the total bond enthalpies of the products.
B. The total bond enthalpies of the reactants are greater than the total bond enthalpies of the products.
C. The total energy released during bond formation is less than the total energy absorbed during bond breaking.
D. The activation energy is the difference between the total bond enthalpies of the products and the total bond enthalpies of the reactants.
Markscheme
A
Examiners report
[N/A]
