Question

What is the difference between the speed of sound of longitudinal waves in air at 27°C and their speed at 13°C?

Answer 1

Answer:

Explanation:

• The speed of sound in air depends on the density of the air. In open air, the density of the air is reduced when the temperature increases. It rises and flows over cooler air, to keep the height of the atmosphere the same all over.  
• The reduced pressure and density causes the speed of sound to change. Sound is carried by vibrations of the air molecules. The differences in speed can calculated.

Answer 2

Answer:

of sound of longitudinal waves in air at 27°C and their speed at 13°C? It's not as much about speed, as it is about bending the stream of energy. Colder air has a higher density than warm and the energy force is bent toward the denser media.