Ahorizontal piston-cylinder is used to expand 3 mol of air from 5 bar to 1 bar isothermally at 300 k. if 10 kj of heat is added to achieve this expansion and assuming the gas is ideal, find: (a) the work produced. (b) the entropy generation. (c) the lost work. (d) would the heat required be less, equal, or more if the process were reversible? explain your answer with relevant supporting equations.