2 moles of an ideal gas expand isothermally and reversibly from 50.0 dm3 to 97.8 dm3 at a temperature of 63.7oC.
(i) Calculate the entropy change for this process, and the entropy change of the surroundings.
(ii) How much energy is transferred as heat during the expansion process?
(iii) How much work is done by the expanding gas?
(iv) What is the entropy change if the process is carried out irreversibly?