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Determine-the-total-translational-energy-of-two-litres-of-oxygen-gas-held-at-a-temperature-of-0-C-and-pressure-of-one-atmosphere-




Question Number 42131 by Necxx last updated on 18/Aug/18
Determine the total translational  energy of two litres of oxygen gas  held at a temperature of 0°C and   pressure of one atmosphere.
Determinethetotaltranslationalenergyoftwolitresofoxygengasheldatatemperatureof0°Candpressureofoneatmosphere.
Commented by Necxx last updated on 19/Aug/18
please help
pleasehelp
Answered by tanmay.chaudhury50@gmail.com last updated on 19/Aug/18
PV=nRT      P=pressure    V=volume    T=temp  n=((PV)/(RT))   n=numbers of mole  U=(1/2)NfKT    U=total energy  N=avogadro number  f=degrees of freedom   NK=R       U=(1/2)RfT      for oxygen f=3 translational degrees offrredom  energy per degrees of freedom  (U/f)=(1/2)RT  so required translational energy  =3n×(1/2)×RT  =3×((PV)/(RT))×(1/2)×RT  =(3/2)(PV)=(3/2)×1.01×10^5 ×2×10^(−3) =3.03×10^2 J  pls check....
PV=nRTP=pressureV=volumeT=tempn=PVRTn=numbersofmoleU=12NfKTU=totalenergyN=avogadronumberf=degreesoffreedomNK=RU=12RfTforoxygenf=3translationaldegreesoffrredomenergyperdegreesoffreedomUf=12RTsorequiredtranslationalenergy=3n×12×RT=3×PVRT×12×RT=32(PV)=32×1.01×105×2×103=3.03×102Jplscheck.
Commented by Necxx last updated on 20/Aug/18
oh...Thanks boss
ohThanksboss

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