Question

Example 4.33. A system consisting of 1 kg of an ideal gas at 5 bar pressure and 0.02 m³ volume executes a cyclic process comprising the following three distinct operations: (i) Reversible expansion to 0.08 m³ volume, 1.5 bar pressure, presuming pressure to be a linear function of volume ($p = a + bV$), (ii) Reversible cooling at constant pressure and (iii) Reversible hyperbolic compression according to law $pV = constant$. This brings the gas back to initial conditions. (i) Sketch the cycle on p-V diagram. (ii) Calculate the work done in each process starting whether it is done on or by the system and evaluate the net cyclic work and heat transfer.

          Example 4.33. A system consisting of 1 kg of an ideal gas at 5 bar pressure and 0.02 m³ volume executes a cyclic process comprising the following three distinct operations: (i) Reversible expansion to 0.08 m³ volume, 1.5 bar pressure, presuming pressure to be a linear function of volume ($p = a + bV$), (ii) Reversible cooling at constant pressure and (iii) Reversible hyperbolic compression according to law $pV = constant$. This brings the gas back to initial conditions.
(i) Sketch the cycle on p-V diagram.
(ii) Calculate the work done in each process starting whether it is done on or by the system and evaluate the net cyclic work and heat transfer.

Example 4.33. A system consisting of 1 kg of an ideal gas at 5 bar pressure and 0.02 m³ volume executes a cyclic process comprising the following three distinct operations: (i) Reversible expansion to 0.08 m³ volume, 1.5 bar pressure, presuming pressure to be a linear function of volume (p = a + bV), (ii) Reversible cooling at constant pressure and (iii) Reversible hyperbolic compression according to law pV = constant. This brings the gas back to initial conditions.
(i) Sketch the cycle on p-V diagram.
(ii) Calculate the work done in each process starting whether it is done on or by the system and evaluate the net cyclic work and heat transfer.

Added by Gonzalo V.

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