Why does warmer soda dissolve less carbon dioxide than colder soda?

• A. Because warmer soda contains more dissolved sugar, which prevents carbon dioxide from dissolving.
• B. Because the pressure inside the soda bottle increases as temperature increases.
• C. Because carbon dioxide reacts more quickly with water at higher temperatures.
• D. Because the solubility of gases in liquids decreases as temperature increases.

Answer: (D)

Verified step by step guidance

1. Understand the concept of gas solubility in liquids: Gas solubility generally depends on temperature and pressure. For most gases, solubility decreases as temperature increases.
2. Recall Henry's Law, which states that the solubility of a gas in a liquid is directly proportional to the partial pressure of the gas above the liquid, but temperature also plays a crucial role in solubility.
3. Recognize that as temperature increases, the kinetic energy of gas molecules increases, making it easier for gas molecules to escape from the liquid into the gas phase, thus reducing solubility.
4. Note that the presence of dissolved sugar or changes in pressure inside the bottle are not the primary reasons for the decrease in carbon dioxide solubility with temperature; rather, it is the intrinsic temperature dependence of gas solubility.
5. Conclude that warmer soda dissolves less carbon dioxide because the solubility of gases in liquids decreases as temperature increases, which is why cold soda retains more carbonation.