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You have a balloon consisting of Helium, which is expanded isothermally at 25 ºC from 22.9...

You have a balloon consisting of Helium, which is expanded isothermally at 25 ºC from
22.9 dm3
to 32.7 dm3
(i) reversibly, (ii) against a constant external pressure equal to the
final pressure of the gas, and (iii) freely against zero external pressure. Determine the work
(w). Please refer to Table Q2(b) for the number of moles of Helium.
number of mole of helium = 16

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