A mass of 0.75mol of an ideal gas at 300K is initially at a pressure of 1.0×105Pa and volume 4.0L. The gas is compressed reversibly and isothermally until its pressure becomes 5.0×105Pa.
(i) Find the final volume of the gas.
(ii) Calculate the work done on the gas during the compression.
(iii) Express your answer to part (ii) in kJ.