Henry law is very much applicable at high pressures, which is slightly more than the atmospheric pressure. Thus, it is applicable for coca cola bottles as well.

According to Henry law, the solubility of a gas in a liquid depends on temperature, the partial pressure of the gas over the liquid, the nature of the solvent and the nature of the gas.

In coca cola bottles, the dissolved carbon dioxide stays in solution in a closed pop bottle or can where the partial pressure of carbon dioxide was set at a high value during bottling. When the can or bottle is opened the partial pressure of CO₂ is much lower and the dissolved carbon dioxide will gradually escape from the pop.