InterviewSolution
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InterviewSolution
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2 mole of an ideal monoatomic gas undergoes a reversible process for which `PV^(2)=C`. The gas is expanded from initial volume of 1 L to final volume of 3 L starting from initial temperature of 300 K. Find `DeltaH` for the process :A. `-600` RB. `-1000` RC. `-3000` RD. None of these |
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Answer» Correct Answer - B `P_(2)V_(2)^(2)=P_(1)V_(1)^(2)` `(P_(2))/(P_(1))=((V_(1))/(V_(2)))^(2)` Now, `(T_(2))/(T_(1))=(P_(2)V_(2))/(P_(1)V_(1))=(V_(1))/(V_(2))=(1)/(3)` `therefore" "T_(2)=(300)/(3)=100K` `DeltaH=nC_(p,m)DeltaT` `=2xx(5)/(2)Rxx(-200K)=1000R` |
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