Question

19) The velocity of sound at same temperature is
maximum in
a) H2
b) N2
c) 02
d) NH3​

Answer 1

Answer:

a)H2

Explanation:

for gases, tha speed of sound is any gas is a function of temperature, tha molecular structure of the gas and it's molecular mass, the lighter a molecul is,the faster it move ( at give temperature) and tha speed of sound in gases is simply proportional to the speed ( on average) of tha molecul.

since tha molecular weight of hydrogen ( H = 1 ) is very less as compared to other gases ( o = 16, N = 14 ,He =4 ) hence molecules of H2 or lighter than other gas molecules so, velocity of sound is maximum in it