Question Detail
Question
Which process is most likely to be spontaneous at room temperature?
Correct Answer
Option C is the correct answer.
Detailed Explanation
At room temperature (25°C), which is above the freezing point but below the boiling point of water, the phase equilibrium is dynamic. However, liquid water exposed to air will spontaneously evaporate to form vapor, as this increases entropy and has a favorable ΔG.
Hint
Consider the phase of water at room temperature and the natural tendency of molecules to escape into the gas phase.