Question

Give reason:
1) speed of sound is maximum in hydrogen gas.
2) speed of sound is much less than the speed of light​

Answer 1

Given :-

Give reason:

1) speed of sound is maximum in hydrogen gas.

2) speed of sound is much less than the speed of light

Ans :-

1. Reason :- At 0 degrees Celsius, and 1 atmosphere of pressure, the density of hydrogen is 0.09 g/L, the density of air is 1.29 g/L, and the density of carbon dioxide is 1.98 g/L. Since hydrogen has the lowest density of the three, the speed of sound will be fastest through hydrogen compared to the other two gasses.
2. Reason :- In a low density material, like air, sound travels much slower because the atoms are farther apart. The speed of light as it travels through air and space is much faster than that of sound; it travels at 300 million meters per second or 273,400 miles per hour.