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In an adiabatic expansion of air (assume it a mixture of `N_2` and `O_2`), the volume increases by `5%`. The percentage change in pressure is: |
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Answer» Correct Answer - 7 `:. PV^(gamma)=`const. `P_(1)xx[(105V)/100]^(gamma)`=const. `:. (P_(1))/Pxx[105/100]^(gamma)` or `(P_(1))/P=[100/105]^(gamma)` or `(P_(1))/P=[100/105]^(7//5)` `:. P_(1)=0.93 P :. 7%` decrease in `P` |
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