p (atm) Q 10P P. 0- T V (m³) A Brayton-cycle heat engine with diatomic gas follows the cycle shown in Figure. The heat input from the burning fuel is 2.5 MJ per cycle. Determine the engine's thermal efficiency (in percent) by explicitly computing the work done per cycle. P=1.74 atm, T1=237 K, V=1.39 m3.
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