Solution Found!
(a) Using average bond enthalpies, predict which of the
Chapter 5, Problem 76E(choose chapter or problem)
(a) Using average bond enthalpies, predict which of the following reactions will be most exothermic:
\(\begin{array}{l}\text{(i) }\mathrm{C}(\mathrm{g})+2\mathrm{\ F}_2(\mathrm{g})\longrightarrow\mathrm{CF}_4(\mathrm{g})\\ \text{(ii) }\mathrm{CO}(\mathrm{g})+3\mathrm{\ F}_2\longrightarrow\mathrm{CF}_4(\mathrm{g})+\mathrm{OF}_2(\mathrm{g})\\ \text{(iii) }\mathrm{CO}_2(g)+4\mathrm{\ F}_2\longrightarrow\mathrm{CF}_4(g)+2\mathrm{OF}_2(g)\end{array}\)
(b) Explain the trend, if any, that exists between reaction exothermicity and the extent to which the carbon atom is bonded to oxygen.
Questions & Answers
QUESTION:
(a) Using average bond enthalpies, predict which of the following reactions will be most exothermic:
\(\begin{array}{l}\text{(i) }\mathrm{C}(\mathrm{g})+2\mathrm{\ F}_2(\mathrm{g})\longrightarrow\mathrm{CF}_4(\mathrm{g})\\ \text{(ii) }\mathrm{CO}(\mathrm{g})+3\mathrm{\ F}_2\longrightarrow\mathrm{CF}_4(\mathrm{g})+\mathrm{OF}_2(\mathrm{g})\\ \text{(iii) }\mathrm{CO}_2(g)+4\mathrm{\ F}_2\longrightarrow\mathrm{CF}_4(g)+2\mathrm{OF}_2(g)\end{array}\)
(b) Explain the trend, if any, that exists between reaction exothermicity and the extent to which the carbon atom is bonded to oxygen.
ANSWER:
Step 1 of 6
(A) To calculate the enthalpy change using bond enthalpy.