Question

The velocity of sound in a gas is directly proportional to the square root of the temperature of the gas taken in degree celsius.

Answer 1

$False$

The velocity ($v$) of sound in a gas is directly proportional to the square root of the temperature ($T$) of the gas taken in $Kelvin,$ and not in celcius.

When $T$ is in Kelvin, $v$ is proportional to $\sqrt{T}$

If $T_1$ and $T_2$ are two different temperatures, and if $v_1$ and $v_2$ are their corresponding velocities, then $\frac{v_1}{v_2}=\frac{\sqrt{T_1}}{\sqrt{T_2}}$