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Explain the conditions for the maximum work in the aspect of thermodynamics. A kilogram of ethylene...

  1. Explain the conditions for the maximum work in the aspect of thermodynamics.
  2. A kilogram of ethylene is compressed from 10-3 m3 to 10-4 m3 at a constant temperature of 300 K. Calculate the minimum work that must be expended, assuming that the gas is (a) ideal (b) van der Waals.
  3. Derive the expression (dU/dT)p = Cp – P(dV/dT)p and show that for ideal gas (dH/dV)T = 0 and (dCv/dV)T = 0.

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