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High pressure steam is expanded adiabati-cally and reversibly through a well insulated turbine, which produces some shaft work. If the enthalpy change and entropy change across the turbine are represented by ΔH and ΔS respectively for this process:
Answer & Solution
Correct Answer:
Option
B
For a reversible adiabatic process the entropy change is zero since $$dS = \frac{{\delta Q}}{T}$$
But the enthalpy change need not be zero since the internal energy and pressure energy may vary during the process.
But the enthalpy change need not be zero since the internal energy and pressure energy may vary during the process.
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