Process in which no work is done on or by the gas

The same question, asked 2 times: May 2022 S1, 19 Apr 2026 S1. Every wording below, oldest first.

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Question 1
May 2022 S1
38 $The thermodynamic process in which no work is done on or by the gas is$
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Question 2
19 Apr 2026 S1
116 $The thermodynamic process in which no work is done by the gas or on the gas is$
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