Is the speed of sound affected when it travels threw different temperatures of air

... G.Bourne Is the speed of sound affected when it travels threw 18/12/01 different temperatures of air Background knowledge The speed of propagation of sound in dry air at a temperature of 0° C is 331.6 m/sec. If the temperature is increased, the speed of sound increases; thus, at 20° C, the velocity of sound is 344 m/sec. Changes in pressure at controlled density have virtually no effect on the speed of sound. The velocity of sound in many other gases depends only on their density. If the molecules are heavy, they move less readily, and sound progresses through such a medium more slowly. Thus, sound travels slightly faster in moist air than in dry air, because moist air contains a greater number of lighter molecules. The velocity of sound in most gases depends also on one other factor, the specific heat, which affects the propagation of sound waves. When

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