Answer:
greater in helium that in neon
Explanation:
The expression of the speed of the sound in the gas is:-
[tex]C_{Sound}=\sqrt {\dfrac {\gamma\times RT}{M}}[/tex]
R is Gas constant
M is the molar mass of gas
T is the temperature
[tex]\gamma[/tex] is the adiabatic constant
Thus, as seen from the formula,
The speed of the sound is inversely proportional to the square root of the molar mass of the gas
So, Helium has lower molecular mass than neon and thus, The speed of the sound in helium is greater when compared to that of neon.
