Which formula is used to calculate the speed of sound in air?

The formula that is used to calculate the speed of sound in air, particularly as it varies with temperature, is represented by the expression that includes a baseline speed plus a temperature-dependent term. In this case, the speed of sound is given by 331 m/s, which is the approximate speed of sound at 0 degrees Celsius, with an additional increase of 0.6 m/s for every degree Celsius increase in temperature. This formula effectively accounts for the fact that as temperature rises, the speed of sound in air also increases due to the greater energy and movement of air molecules.

The knowledge of how sound propagation is influenced by temperature is essential in understanding acoustic phenomena, and this model accurately reflects how the physical properties of air change with temperature. Therefore, using this formula allows you to calculate the speed of sound under varying temperature conditions, which is a key aspect of wave mechanics in a real-world context like air as a medium.