1.

_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:$?

A. Δ H = 0 and ΔS = 0
B. ≈í√Æ H ‚Äö√¢‚Ä 0 and ≈í√ÆS = 0
C. ≈í√Æ H ‚Äö√¢‚Ä 0 and ≈í√ÆS ‚Äö√¢‚Ä 0
D. ≈í√Æ H = 0 and ≈í√ÆS ‚Äö√¢‚Ä 0
Answer» C. ≈í√Æ H ‚Äö√¢‚Ä 0 and ≈í√ÆS ‚Äö√¢‚Ä 0


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