03.47: A monatomic ideal gas is used
v hqu3z /lak3( as the working substance for the Carnot cycle shown in the
33q h/u al(zvkfigure. Processes A → B and C → D are isothermal, while processes B → C and D → A are adiabatic. During process A → B, there are 400 J of work done by the gas on the surroundings. How much heat is expelled by the gas during process C → D?