According to the first law of thermodynamics, Δ U = q + W. In special cases the statement…

Chemistry · Class 11 · CBSE — Thermodynamics

1. At constant temperature: q = –W
2. When no work is done: DU = q
3. In gaseous system: DU = q + PDV
4. When work is done by the system: DU = q + W

Answer

(C) In gaseous system: D U = q + P D V

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