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
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Algebraic!
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Are you there?
lilMissMindset
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yes
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first find:\[\int\limits_{.15}^{.05} (\frac{ 5 }{ V } +1.5)dV\]
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that will give you the work done...
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seem reasonable?
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delta U = Q-W
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they give you Q so if you have W you know change in internal energy
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you know the conversions?
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hello?
lilMissMindset
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alright, i understood now. thanks a lot!
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sure!
lilMissMindset
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oooooh. really really really thank you. i thought i'm just going to substitue the v's. lol
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heh