Engineering Thermodynamics
Carnot cycle efficiency is maximum when

Difference between initial and final temperature is 0°K
Initial temperature is 0°K
Final temperature is 0°K
Final temperature is 0°C

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Engineering Thermodynamics
Extensive property of a system is one whose value

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

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