Please help with this thermo problem! Its an isothermal expansion.

  • #1

Homework Statement



10 moles of an ideal gas at 100 atm pressure are expanded isothermally against a constant pressure of 10 atm, to 10 at. calculate Q W deltaU and delta H (Take temp to be T)


Homework Equations



PV = nRT
DeltaH = Q (for constant P)
DeltaU = Q-W
U = H+PV
W = Integral(PdV)


The Attempt at a Solution



I wish i knew where to start...
Isothermal means a constant pressure, in this case 10 atm. ...i just have no idea.


PV = nRT
V1 = .8314T
V2 = 8.314T

W= Integral(PdV)
W = PIntegral(dv)
W = P(v2-v1)
W = 74.826

Got IT!
 
Last edited:

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