Tuesday, 5 June 2018

1:18 PM

Machine generated alternative text: L5: PV diagrams PV = nRT A Eint Q + W Isovolumetric constant volume constant AEint — Q nCvAT Isobaric constant pressure a constant Q = nCpAT Isothermal constant temperature PV = constant AEtnt Adiabatic process no heat transfer P VI = constant

 

Machine generated alternative text: Remember: PV = nRT Isothermal AP = 0 w=pnv PdV Const. temperature AT=O AE -O Q = -W nRT nRT Adiabatic No heat exchange P, V and T are changing T decrease with P and V increase Note: can be a fast process Special case: Adiabatic free expansion is expansion into a vacuum, then its isothermal and Isobaric Constant pressure PdV = Q+ pnv T increase with V increase Isovolumetric (Isochoric) Constant Volume AV=O AEint = Q T increase with P increase w W —nRT U) Thor—m. Isobaric +48 Volume

 

 

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