1 Horsepower= 746 W
Energy developed by the steam turbine ="power\\times time"
"=200\\times746\\times60\\times60=537,120,000 J=537120kJ"
This energy is developed by the some mass of steam
Let us assume 'x' pound of steam constitute this energy
Energy developed by steam ="x\\times400" BTU
1 BTU=1055 J
Energy developed by steam(in joules) = "x\\times 400\\times1055"
Energy developed by the steam turbine=Energy developed by steam
"537120000=x\\times400\\times1055"
x"=1272.8" pounds
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