High pressure steam is expanded adiabatically 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: (A) Δ H = 0 and ΔS = 0 (B) Δ H ≠ 0 and ΔS = 0 (C) Δ H ≠ 0 and ΔS ≠ 0 (D) Δ H = 0 and ΔS ≠ 0

High pressure steam is expanded adiabatically 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:
(A) Δ H = 0 and ΔS = 0
(B) Δ H ≠ 0 and ΔS = 0
(C) Δ H ≠ 0 and ΔS ≠ 0
(D) Δ H = 0 and ΔS ≠ 0
by

1 Answer

Answer :

(B) Δ H ≠ 0 and ΔS = 0
by

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