Engineering Thermodynamics
The work ratio of a gas turbine plant is given by

(Actual temperature drop)/(Isentropic temperature drop)
(Net work output)/(Heat supplied)
(Net work output)/(Work-done by the turbine)
(Isentropic increase in temperature)/(Actual increase in temperature)

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Engineering Thermodynamics
Extensive property of a system is one whose value

Does not depend on the mass of the system, like temperature, pressure, etc.
Is not dependent on the path followed but on the state
Is dependent on the path followed and not on the state
Depends on the mass of the system like volume

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