Good luck – and remember:

| Chapter | Problem | Error | Correction | |---------|---------|-------|-------------| | 3 | 3–98 | Used saturated liquid enthalpy at 40°C instead of compressed liquid approximation | Should use h ≈ h_f@40°C (error <0.1%, but conceptually wrong) | | 5 | 5–67 | Sign error in turbine work (W_turb positive when leaving system) | Standard sign convention: W_out = positive | | 7 | 7–125 | Interpolated entropy wrong at 1.2 MPa for superheated steam | Re-interpolate between 1.0 and 1.5 MPa tables | | 9 | 9–43 | Brayton cycle back work ratio miscalculated | Correct ratio ~0.45, not 0.52 |

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