GCSE / O Levels Chemistry

The reaction of hydrogen with chlorine to form gaseous hydrogen chloride is exothermic.
Which statement is correct?
A The total energy of bond formation is greater than the total energy of bond breaking.
B The total energy of bond breaking is greater than the total energy of bond formation.
C The temperature of the reaction mixture falls during the reaction.
D The temperature of the reaction mixture remains unchanged during the reaction.


Exothermic and Endothermic | 2021 - O/N - 5070/11 | Q17