Задача id10416

Calculate the efficiency (in percent) of a gas burner if it uses gas with a calorific value of 36 MJ/m3, and 60 liters of gas were consumed to heat a kettle with 3 liters of water from 10°C to boiling. The heat capacity of the kettle is 600 J/K. The specific heat capacity of water is 4200 J/(kg*K).

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