IGCSE Chemistry 0620/21/O/N/21 Q11
11 Chlorine reacts with ethane to produce chloroethane and hydrogen chloride.
The reaction is exothermic.
The bond energies are shown in the table.
bond bond energy in kJ / mol
What is the energy change for the reaction?
A –1420 kJ /mol
B –120 kJ /mol
C +120 kJ / mol
D +1420 kJ / mol