--------------------------------------- Required information The PV diagram shown is for a heat engine that 'ded uses 1.350 mol of a diatomic ideal gas as its working substance. In the constant-temperature . processes A and C, the gas is in contact with reservoirs at temperatures 373 K and 273 K, respectively. In constant-volume process B, the gas temperature decreases as heat flows into the cold reservoir. In constant-volume process D, the gas temperature increases as heat flows from the hot reservoir. 0019 002 0021 0022 0023 0024 0025 0026 Volume (m\") L A If the heat input per cycle is 3740 J, what is the efficiency of the engine? 0.0670 + 5% Explanation Use the definition of efficiency