Question: QUESTION 3 4 points Save Answe A petrol engine uses 20 kg of petrol /h of calorific value 40 MJ/kg. The amount of energy rejected

QUESTION 3 4 points Save Answe A petrol engine uses 20 kg of petrol /h of calorific value 40 MJ/kg. The amount of energy rejected by the engine is 10 M/min. Calculate: the thermal efficiency of the engine. a b. the power output of the engine

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