What are the factors that affect the speed of sound in gases?

1.	What are the factors that affect the speed of sound in gases?
Answer» Solution :Effect of density: The velocity of sound in a gas is inversely proportional to the square root of the density of the gas. HENCE, the velocity DECREASES as the density of the gas increases. `v prop sqrt(1/d)` Effect of temperature: (i)The velocity of sound in a gas is directly proportional to the square root of its temperature. (ii)The velocity of sound in a gas increases with the increase in temperature `v prop sqrtT`Velocity at temperature Tis given by the following equation : `v_T=(v_0+0.61 T)ms^(-1)` Here , `v_0` is the velocity of sound in the gas at `0^@C`. For air `v_0= 331ms^(-1)`. Hence, the velocity of sound CHANGES by 0.61 `ms^(-1)` when the temperature changes by one degree CELSIUS. Effect of relative humidity: When humidity increases the speed of sound increase That is why we can hear sound from long DISTANCE clearly during rainy seasons

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