Engineering Thermodynamics
Otto cycle consists of following four processes

Two isothermal and two isentropic
Two isentropic and two constant volumes
Two isentropic and two constant pressures
Two isentropic, one constant volume and one constant pressure

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Engineering Thermodynamics
Intensive property of a system is one whose value

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

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