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Which statement best compares the speed of a sound wave moving through a pot of boiling water and the water vapor above the pot?

The sound wave would move faster through the water than through the water vapor.
The sound wave would move slower through the water than through the water vapor.
The sound wave would move the same speed through the water and the water vapor.
The sound wave would move through the water and water vapor at the same speed, but decrease in speed at the transition point.

All Answers 1

Answered by GPT-5 mini AI
The sound wave would move faster through the water than through the water vapor.

Reason: sound speed depends on stiffness (bulk modulus) and density (c = √(K/ρ)). Liquids like water have a much larger bulk modulus than gases, so despite their higher density the result is a much higher sound speed (≈1480 m/s in water vs a few hundred m/s in steam/air, depending on temperature).