How does chlorine release bromine from bromides in seawater?

In the industrial production of bromine from seawater, chlorine is used to extract the element through a process known as chemical displacement, or oxidation.12

To facilitate this reaction, the seawater is first acidified with sulfuric acid. Once the water is acidified, it is treated with chlorine, which effectively displaces and releases the bromine from the bromides naturally present in the water. Following this release, a current of air is blown through the solution to remove the bromine as a dilute mixture, which is then further processed and concentrated for commercial use.12