Final answer:
Sodium bicarbonate and oxygen can dissolve better in water when the solution is heated. (option b is the correct answer)
Step-by-step explanation:
The solubility of a solute in a solvent often increases with temperature, especially for solid solutes in liquid solvents. Sodium bicarbonate (NaHCO₃) is a soluble ionic compound that dissolves better in water when the temperature is increased. The increased kinetic energy at higher temperatures allows solvent molecules to more effectively surround and break apart solute particles, enhancing the dissolution process.
Gases like oxygen (a) and argon (c) generally show decreased solubility with rising temperatures due to decreased gas solubility in liquids at higher temperatures.
On the other hand, gases like oxygen and argon exhibit a different behavior. Generally, the solubility of gases in liquids decreases with rising temperatures due to decreased gas solubility at higher temperatures. This is attributed to the decrease in the attractive forces between gas molecules and solvent molecules as temperature increases.
Sodium bicarbonate (b) is expected to dissolve better when the solution is heated because its solubility increases with higher temperatures, while gases like oxygen (a) and argon (c) tend to show decreased solubility under the same conditions. Therefore, heating the solution favors the dissolution of sodium bicarbonate.