The working substance of a certain Carnot engine is 1.30 molmol of an ideal monatomic gas. During the isothermal expansion portion of this engine's cycle, the volume of the gas doubles, while during the adiabatic expansion the volume increases by a factor of 5.7. The work output of the engine is 960 J in each cycle. Required:
Compute the temperatures of the two reservoirs between which this engine operates.