Thermodynamics and ThermochemistrymediumMCQ SINGLE⭐ Must-Do

In a completely cyclic process, a system starts and ends at the exact same thermodynamic state. WhicThermodynamics and Thermochemistry Chemistry Question

Question

In a completely cyclic process, a system starts and ends at the exact same thermodynamic state. Which of the following cyclic integrals is mathematically non-zero?

Answer: C

💡 Solution & Explanation

In a cyclic process, the system returns to its initial state, so the net change in all state functions ($U, H, S, G$) is exactly zero. However, work ($w$) is a path function, and its net cyclic integral equals the area enclosed in the P-V loop.

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