MCQ
In the usual notation, the isothermal work, $W =$
- A$P\left(V_f-V_i\right)$
- B$n R T\left(P_i / P_f\right)$
- ✓$n R T \ln \left(P_i / P_f\right)$
- D$n R T\left(P_f / P_i\right)$.
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