Engineering Thermodynamics
The index of compression ‘n’ tends to reach ratio of specific heats ‘y’ when

Flow is uniform and steady
Process is isothermal
Process is isentropic and specific heat does not change with temperature
Process is isentropic

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Engineering Thermodynamics
Extensive property of a system is one whose value

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

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