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Why is the vanishing of a cyclic integral the property of a state function?
The vanishing of a cyclic integral refers to the property of a state function in thermodynamics where the integral of a closed loop process is equal to zero. This is important because it allows for the determination of the change in a state function without having to know the specific path taken.
The vanishing of a cyclic integral is directly related to the first law of thermodynamics, which states that energy cannot be created or destroyed, only transferred or converted. This property allows for the accurate calculation of energy changes in a system.
One example of a cyclic integral in a real-life scenario is the Carnot cycle, which is a thermodynamic cycle used in heat engines. In this cycle, the vanishing of the cyclic integral allows for the calculation of the efficiency of the engine.
The concept of a cyclic integral is also used in fields such as economics, finance, and physics. In economics, it is used to calculate the work done on a system, while in finance it is used to measure the net gain or loss in a portfolio. In physics, it is used to calculate the work done by a conservative force.
While the vanishing of a cyclic integral is a useful property in state function calculations, it is important to note that it is only applicable to closed loop processes. If the process is not cyclic, this property cannot be used. Additionally, it only applies to state functions and cannot be used for non-state functions.