Question

The speed of sound in fresh water at 293k is 1482 m/s. At what temperature is the speed of sound in helium gas the same as that of fresh water at 293k? Helium is considered a monatomic ideal gas (y = 1.67 and atomic mass = 4.003u).
A)442K
B)377K
C)525K
D)313K
E)633K

Answer 1

The speed of sound in fresh water at 293k is 1482 m/s.
At 633K temperature is the speed of sound in helium gas the same as that of fresh water at 293k.
E)633K