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The speed of sound in a mixture of `n_1=2` moles of He , `n_2=2` moles of `H_2` at temperature `T=972/5 K` is `etaxx10m//s`.Find `eta`.(Take `R=25/3J` /mole-K) |
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Answer» `v=sqrt((gammaRT)/M)` `M=(4xx2+2xx2)/4=3g` `gamma=1+2/f=1+(2xx(2+2))/(2xx3+2xx5)=3/2` `therefore v=sqrt(3/2xx25/3xx1000/3xx972/5)=900 m//s` |
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