The bond energy data below are given. C-H: $410\ \text{kJ mol}^{-1}$ C-Cl: $340\ \text{kJ mol}^{-1}$ Cl-Cl: $244\ \text{kJ mol}^{-1}$ Br-Br: $193\ \text{kJ mol}^{-1}$ These bond energy data correspond to the four reactions shown here. P: $\text{Br}_2 \rightarrow 2\text{Br}$ Q: $2\text{Cl} \rightarrow \text{Cl}_2$ R: $\text{CH}_3 + \text{Cl} \rightarrow \text{CH}_3\text{Cl}$ S: $\text{CH}_4 \rightarrow \text{CH}_3 + \text{H}$ Which sequence correctly arranges the enthalpy changes for these reactions from the most negative to the most positive?
- AP → Q → R → S
- BQ → R → S → P
- CR → Q → P → S
- DS → P → Q → R