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Engineering Science B 2024 工程科学 B 2024 Progress Test 3 Progress Test 3   进度测试 3

Multiple choice

Thermodynamics: A closed system is thermally isolated from the surroundings. The cycle consists of 2 processes:Process 1-2 is irreversible and adiabatic (  Q12=0 ) Process 2-1 is reversible but not adiabatic (  Q21≠0 ). Which of the following statements is/are true?

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The problem describes a cyclic process in a thermally isolated closed system with two steps: 1→2 is irreversible and adiabatic (Q12 = 0), and 2→1 is reversible but not adiabatic (Q21 ≠ 0). Option 1: The cycle is irreversible. - Since one of the steps (1→2) is irreversible, the cycle as a whole is irreversible. Irreversibility......Login to view full explanation

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