Discussion
Water is pumped from 100 to 3000 kilopascals. Taking its specific volume as 0.001 cubic metres per kilogram, what is the ideal pump work?
Answer: D
For an incompressible liquid the reversible work is the specific volume times the pressure rise, which is two thousand nine hundred kilopascals times one thousandth of a cubic metre. That is why pump work is small beside turbine work in a steam cycle.
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