Question: A sample of argon of mass 6.56 g occupies 18.5 dm3 at 305 K. (a) Calculate the work done when the gas expands isothermally against

A sample of argon of mass 6.56 g occupies 18.5 dm3 at 305 K.
(a) Calculate the work done when the gas expands isothermally against a constant external pressure of7.7 kPa until its volume has increased by 2.5 dm3.
(b) Calculate the work that would be done if the same expansion occurred reversibly.

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