Graphically show the total work done in an expansion when the state of an ideal gas is changed reversibly and isothermally from (Pi, Vi) to (Pf, Vf) . With the help of a pV plot compare the work done in the above case with that carried out against a constant external pressure Pf.
Graphically show the total work done in an expansion when the state of an ideal gas is changed reversibly and isothermally from (Pi, Vi) to (Pf, Vf) . With the help of a pV plot compare the work done in the above case with that carried out against a constant external pressure Pf.
(i) Reversible work is represented by the combined areas
(ii) Work against constant pressure, Pf is represented by the area
Work (i) > Work (ii).
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Chemistry NCERT Exemplar Solutions Class 11th Chapter Six 2025
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