Question

why the speed of sound is faster in warm air than in cold air​

Answer 1

Answer:

Heat makes air molecules move around faster, so they're more ready to carry a pressure wave than slower-moving molecules. Because of that, heat makes sound travel faster, too.

Answer 2

Heat makes air molecules move around faster, so they're more ready to carry a pressure wave than slower-moving molecules. Because of that, heat makes sound travel faster, too.