Sound travels in a mixture of two moles of helium and n moles of hydrogen. If rms speed of gas molecules in the mixture is time the speed of sound, then the value of n will be
Sound travels in a mixture of two moles of helium and n moles of hydrogen. If rms speed of gas molecules in the mixture is time the speed of sound, then the value of n will be
Option 1 -
1
Option 2 -
2
Option 3 -
3
Option 4 -
5
-
1 Answer
-
Correct Option - 2
Detailed Solution:As we know that
Speed of sound in a gas, and
Rms speed of gas molecules, so
According formula of specific heat ratio of mixture, we can write
5n = 14 n = 2.8
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