In which medium does sound travel faster and why
Sound travels faster in solids because molecules in a solid medium are much closer together than those in a liquid or gas, which makes the sound travel faster. Sound waves travel over 17 times faster through steel than air.
Instruction: In which medium does sound travel faster and why
Context: 
Response: Sound travels faster in solids because molecules in a solid medium are much closer together than those in a liquid or gas, which makes the sound travel faster. Sound waves travel over 17 times faster through steel than air.