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lilMissMindset

help please! i don't know how to use the pressure volume relation in this problem. A fluid system undergoes a nonflow frictionless process following the pressure volume relation as P = (5/V) + 1.5 where P is in bar and V is in m3. During the process the volume changes from 0.15 m3 to 0.05 m3 and the system rejects 45 kJ of heat. Determine: A] change in internal energy B] change in enthalpy

  • one year ago
  • one year ago

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  1. Algebraic!
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    Are you there?

    • one year ago
  2. lilMissMindset
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    yes

    • one year ago
  3. Algebraic!
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    first find:\[\int\limits_{.15}^{.05} (\frac{ 5 }{ V } +1.5)dV\]

    • one year ago
  4. Algebraic!
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    that will give you the work done...

    • one year ago
  5. Algebraic!
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    seem reasonable?

    • one year ago
  6. Algebraic!
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    delta U = Q-W

    • one year ago
  7. Algebraic!
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    they give you Q so if you have W you know change in internal energy

    • one year ago
  8. Algebraic!
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    you know the conversions?

    • one year ago
  9. Algebraic!
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    hello?

    • one year ago
  10. lilMissMindset
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    alright, i understood now. thanks a lot!

    • one year ago
  11. Algebraic!
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    sure!

    • one year ago
  12. lilMissMindset
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    oooooh. really really really thank you. i thought i'm just going to substitue the v's. lol

    • one year ago
  13. Algebraic!
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    heh

    • one year ago
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