Question
Download Solution PDFWhich of the following claims about the irreversibility of a system is true?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
Irreversibility in thermodynamics refers to processes that cannot be reversed to restore both the system and its surroundings to their original states without any changes occurring elsewhere in the universe.
To determine which claim about the irreversibility of a system is true, we need to analyze each statement based on thermodynamic principles.
1) Irreversible processes violate the first law of thermodynamics.
The first law of thermodynamics states that energy cannot be created or destroyed, only transformed or transferred. Irreversible processes do not violate this law; they adhere to energy conservation principles.
2) Irreversible processes increase the entropy of the system.
According to the second law of thermodynamics, the entropy of an isolated system always increases in the course of an irreversible process. This is a true statement.
3) Irreversible processes violate the zeroth law of thermodynamics.
The zeroth law of thermodynamics deals with thermal equilibrium and does not relate to the irreversibility of processes. Irreversible processes do not violate this law.
4) Irreversible processes are always spontaneous.
While many irreversible processes are spontaneous, not all spontaneous processes are irreversible. This statement is not universally true.
Last updated on May 28, 2025
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